How can i show my battery level in AppWidget? - android

I want to show the battery level in my AppWidget. I used below code to get battery level in my activity
BroadcastReceiver batteryReceiver = new BroadcastReceiver() {
int scale = -1;
int level = -1;
int voltage = -1;
int temp = -1;
#Override
public void onReceive(Context context, Intent intent) {
level = intent.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
scale = intent.getIntExtra(BatteryManager.EXTRA_SCALE, -1);
temp = intent.getIntExtra(BatteryManager.EXTRA_TEMPERATURE, -1);
voltage = intent.getIntExtra(BatteryManager.EXTRA_VOLTAGE, -1);
Log.d("Battery_level", ""+level);
}
};
IntentFilter filter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
registerReceiver(batteryReceiver, filter);
How can i implement this in my Class which extends AppWidgetProvider?
public class HomeWidget1 extends AppWidgetProvider {
#Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[]
appWidgetIds) {
super.onUpdate(context, appWidgetManager, appWidgetIds);
}
#Override
public void onReceive(Context context, Intent intent) {
}
What should be the code in onUpdate and onReceive method??

This code gives you the battery level:
package com.exercise.AndroidBattery;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.BatteryManager;
import android.os.Bundle;
import android.widget.TextView;
public class AndroidBattery extends Activity {
private TextView batteryLevel, batteryVoltage, batteryTemperature,
batteryTechnology, batteryStatus, batteryHealth;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
batteryLevel = (TextView)findViewById(R.id.batterylevel);
batteryVoltage = (TextView)findViewById(R.id.batteryvoltage);
batteryTemperature = (TextView)findViewById(R.id.batterytemperature);
batteryTechnology = (TextView)findViewById(R.id.batterytechology);
batteryStatus = (TextView)findViewById(R.id.batterystatus);
batteryHealth = (TextView)findViewById(R.id.batteryhealth);
this.registerReceiver(this.myBatteryReceiver,
new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
}
private BroadcastReceiver myBatteryReceiver
= new BroadcastReceiver(){
#Override
public void onReceive(Context arg0, Intent arg1) {
// TODO Auto-generated method stub
if (arg1.getAction().equals(Intent.ACTION_BATTERY_CHANGED)){
batteryLevel.setText("Level: "
+ String.valueOf(arg1.getIntExtra("level", 0)) + "%");
batteryVoltage.setText("Voltage: "
+ String.valueOf((float)arg1.getIntExtra("voltage", 0)/1000) + "V");
batteryTemperature.setText("Temperature: "
+ String.valueOf((float)arg1.getIntExtra("temperature", 0)/10) + "c");
batteryTechnology.setText("Technology: " + arg1.getStringExtra("technology"));
int status = arg1.getIntExtra("status", BatteryManager.BATTERY_STATUS_UNKNOWN);
String strStatus;
if (status == BatteryManager.BATTERY_STATUS_CHARGING){
strStatus = "Charging";
} else if (status == BatteryManager.BATTERY_STATUS_DISCHARGING){
strStatus = "Dis-charging";
} else if (status == BatteryManager.BATTERY_STATUS_NOT_CHARGING){
strStatus = "Not charging";
} else if (status == BatteryManager.BATTERY_STATUS_FULL){
strStatus = "Full";
} else {
strStatus = "Unknown";
}
batteryStatus.setText("Status: " + strStatus);
int health = arg1.getIntExtra("health", BatteryManager.BATTERY_HEALTH_UNKNOWN);
String strHealth;
if (health == BatteryManager.BATTERY_HEALTH_GOOD){
strHealth = "Good";
} else if (health == BatteryManager.BATTERY_HEALTH_OVERHEAT){
strHealth = "Over Heat";
} else if (health == BatteryManager.BATTERY_HEALTH_DEAD){
strHealth = "Dead";
} else if (health == BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE){
strHealth = "Over Voltage";
} else if (health == BatteryManager.BATTERY_HEALTH_UNSPECIFIED_FAILURE){
strHealth = "Unspecified Failure";
} else{
strHealth = "Unknown";
}
batteryHealth.setText("Health: " + strHealth);
}
}
};
}

Related

Open a actvity when a if statement comes true

Hi I want to open a activity when a if statement comes true. like "if gameStatus are equal to 12, then open scoreActivity". The Code:
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.GridLayout;
import java.util.Random;
import android.os.Build;
import android.os.Handler;
public class Game6x4Activity extends AppCompatActivity implements View.OnClickListener {
private int numberOfElements;
private int[] buttonGraphicLocations;
private MemoryButton selectedButton1;
private MemoryButton selectedButton2;
private boolean isBusy = false;
public int gameStatus;
public int gameScore;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.first_mode);
gameScore = 0;
gameStatus = 0;
GridLayout gridLayout = (GridLayout)findViewById(R.id.grid_layout_6x4);
int numColumns = gridLayout.getColumnCount();
int numRow = gridLayout.getRowCount();
numberOfElements = numColumns * numRow;
MemoryButton[] buttons = new MemoryButton[numberOfElements];
int[] buttonGraphics = new int[numberOfElements / 2];
buttonGraphics[0] = R.drawable.card1;
buttonGraphics[1] = R.drawable.card2;
buttonGraphics[2] = R.drawable.card3;
buttonGraphics[3] = R.drawable.card4;
buttonGraphics[4] = R.drawable.card5;
buttonGraphics[5] = R.drawable.card6;
buttonGraphics[6] = R.drawable.card7;
buttonGraphics[7] = R.drawable.card8;
buttonGraphics[8] = R.drawable.card9;
buttonGraphics[9] = R.drawable.card10;
buttonGraphics[10] = R.drawable.card11;
buttonGraphics[11] = R.drawable.card12;
buttonGraphicLocations = new int[numberOfElements];
shuffleButtonGraphics();
for(int r=0; r < numRow; r++)
{
for(int c=0; c <numColumns; c++)
{
MemoryButton tempButton = new MemoryButton(this, r, c, buttonGraphics[buttonGraphicLocations[r * numColumns + c]]);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
tempButton.setId(View.generateViewId());
}
tempButton.setOnClickListener(this);
buttons[r * numColumns + c] = tempButton;
gridLayout.addView(tempButton);
}
}
}
protected void shuffleButtonGraphics(){
Random rand = new Random();
for (int i=0; i < numberOfElements; i++)
{
buttonGraphicLocations[i] = i % (numberOfElements / 2);
}
for (int i=0; i < numberOfElements; i++)
{
int temp = buttonGraphicLocations[i];
int swapIndex = rand.nextInt(16);
buttonGraphicLocations[i] = buttonGraphicLocations[swapIndex];
buttonGraphicLocations[swapIndex] = temp;
}
}
private int buttonGraphicLocations(int i) {
return 0;
}
#Override
public void onClick(View view) {
if(isBusy) {
return;
}
MemoryButton button = (MemoryButton) view;
if(button.isMatched) {
return;
}
if(selectedButton1 == null)
{
selectedButton1 = button;
selectedButton1.flip();
return;
}
if(selectedButton1.getId()== button.getId())
{
return;
}
if (selectedButton1.getFrontDrawableId()== button.getFrontDrawableId())
{
button.flip();
button.setMatched(true);
if (selectedButton1 != null) {
selectedButton1.setEnabled(false);
System.out.println("not null");
}
else{
System.out.println("null");
}
if (selectedButton2 != null) {
selectedButton2.setEnabled(false);
System.out.println("not null");
}
else{
System.out.println("null");
}
gameStatus = gameStatus + 1;
gameScore = gameScore + 10;
if (gameStatus == 12){
Intent it = new Intent(Game6x4Activity.this, ActivityScore.class);
startActivity(it);
}
selectedButton1 = null;
return;
}
else
{
selectedButton2 = button;
selectedButton2.flip();
isBusy = true;
final Handler handler = new Handler();
handler.postDelayed(new Runnable() {
public void run(){
selectedButton2.flip();
selectedButton1.flip();
selectedButton1 = null;
selectedButton2 = null;
isBusy = false;
}
},500);
return;
}
}
}
The activity that i want to open will show to the player his score. the activity is equal to all game modes, there will be some test to the app understant what path should go on. test like this one:
"
if (gameStatus == 12) {
gameScore = gameScore*55;
TextView scoreText = (TextView) findViewById(R.id.textView8);
scoreText.setText(gameScore);
}
else if (gameStatus == 15){
"
There are 4 game modes: This is the 6x4 game, where we can find 24 cards (12 images).
else if (gameStatus == 15){
Intent intent = new Intent(Game6x4Activity.this, NextActivity.class);
startActivity(intent);
}
I think, you are asking for this. You can pass value to another activity with
intent.putExtra("key",desired value);

How can I fix (The left-hand side of an assignment must be a variable) and (Type mismatch: cannot convert from Object to String) in this code?

I have this code for compressing pictures , I have two error , I have separated these errors with line in code like this (...........) first is : The left-hand side of an assignment must be a variable .......... and the second is Type mismatch: cannot convert from Object to String ................. how can I fix them ???
package com.example.resizingimages;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.content.res.Resources;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.Bitmap.Config;
import android.graphics.BitmapFactory;
import android.graphics.BitmapFactory.Options;
import android.graphics.Matrix;
import android.media.ExifInterface;
import android.media.MediaScannerConnection;
import android.media.MediaScannerConnection.MediaScannerConnectionClient;
import android.media.MediaScannerConnection.OnScanCompletedListener;
import android.net.Uri;
import android.os.Build;
import android.os.Build.VERSION;
import android.os.Bundle;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
import android.provider.MediaStore.Audio.Media;
import android.provider.MediaStore.Images.Media;
import android.provider.MediaStore.Video.Media;
import android.util.Log;
import android.view.Display;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.view.WindowManager;
import android.widget.AbsoluteLayout;
import android.widget.AbsoluteLayout.LayoutParams;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;
import java.io.File;
import java.io.InputStream;
import java.io.PrintStream;
public class GetImageActivity extends Activity
implements MediaScannerConnection.MediaScannerConnectionClient, DialogInterface
{
private static final int CAMERA_REQUEST = 1800;
private static final int GALLERY_KITKAT_INTENT_CALLED = 1500;
private static final int SELECT_PICTURE = 1;
static String filePath;
private TextView Name;
private TextView Size;
MediaScannerConnection conn;
File file;
private String filename;
private int height;
Uri imageUri;
private ImageView img;
private Uri outputFileUri;
Uri outputFileUri1;
String path1;
private String path2;
private Bitmap picture;
private File root;
File sdImageMainDirectory;
private Uri selectedImageUri;
private int width;
private void cameraaa(String paramString, Uri paramUri)
{
while (true)
{
try
{
InputStream localInputStream = getContentResolver().openInputStream(paramUri);
BitmapFactory.Options localOptions = new BitmapFactory.Options();
localOptions.inSampleSize = 2;
localOptions.inPurgeable = true;
byte[] arrayOfByte = new byte[1024];
localOptions.inPreferredConfig = Bitmap.Config.RGB_565;
localOptions.inTempStorage = arrayOfByte;
this.picture = BitmapFactory.decodeStream(localInputStream, null, localOptions);
switch (new ExifInterface(paramString).getAttributeInt("Orientation", 1))
{
case 4:
case 5:
default:
this.img.setImageBitmap(this.picture);
String str = sizee(paramUri);
Toast.makeText(getApplicationContext(), "Size of Image " + str, 0).show();
System.out.println("Image Path : " + paramString);
return;
case 6:
rotateImage(this.picture, 90);
continue;
case 3:
}
}
catch (Exception localException)
{
Toast.makeText(getApplicationContext(), "Error " + localException.getMessage(), 0).show();
return;
}
rotateImage(this.picture, 180);
}
}
public static String getDataColumn(Context paramContext, Uri paramUri, String paramString, String[] paramArrayOfString)
{
Cursor localCursor = null;
String[] arrayOfString = { "_data" };
try
{
localCursor = paramContext.getContentResolver().query(paramUri, arrayOfString, paramString, paramArrayOfString, null);
if ((localCursor != null) && (localCursor.moveToFirst()))
{
String str = localCursor.getString(localCursor.getColumnIndexOrThrow("_data"));
return str;
}
}
finally
{
if (localCursor != null)
localCursor.close();
}
if (localCursor != null)
localCursor.close();
return null;
}
public static String getPathl(Context paramContext, Uri paramUri)
{
int i;
if (Build.VERSION.SDK_INT >= 19)
i = 1;
while ((i != 0) && (DocumentsContract.isDocumentUri(paramContext, paramUri)))
if (isExternalStorageDocument(paramUri))
{
String[] arrayOfString3 = DocumentsContract.getDocumentId(paramUri).split(":");
if (!"primary".equalsIgnoreCase(arrayOfString3[0]))
break label271;
return Environment.getExternalStorageDirectory() + "/" + arrayOfString3[1];
i = 0;
}
else
{
if (isDownloadsDocument(paramUri))
{
String str2 = DocumentsContract.getDocumentId(paramUri);
return getDataColumn(paramContext, ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(str2).longValue()), null, null);
}
if (!isMediaDocument(paramUri))
break label271;
String[] arrayOfString1 = DocumentsContract.getDocumentId(paramUri).split(":");
String str1 = arrayOfString1[0];
Uri localUri;
if ("image".equals(str1))
localUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
while (true)
{
String[] arrayOfString2 = new String[1];
arrayOfString2[0] = arrayOfString1[1];
return getDataColumn(paramContext, localUri, "_id=?", arrayOfString2);
if ("video".equals(str1))
{
localUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
}
else
{
boolean bool = "audio".equals(str1);
localUri = null;
if (bool)
localUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
}
}
}
if ("content".equalsIgnoreCase(paramUri.getScheme()))
return getDataColumn(paramContext, paramUri, null, null);
if ("file".equalsIgnoreCase(paramUri.getScheme()))
return paramUri.getPath();
label271: return filePath;
}
public static boolean isDownloadsDocument(Uri paramUri)
{
return "com.android.providers.downloads.documents".equals(paramUri.getAuthority());
}
public static boolean isExternalStorageDocument(Uri paramUri)
{
return "com.android.externalstorage.documents".equals(paramUri.getAuthority());
}
public static boolean isMediaDocument(Uri paramUri)
{
return "com.android.providers.media.documents".equals(paramUri.getAuthority());
}
private void openAddPhoto()
{
String[] arrayOfString = { "Camera", "Gallery" };
AlertDialog.Builder localBuilder = new AlertDialog.Builder(this);
localBuilder.setTitle(getResources().getString(2130968578));
localBuilder.setItems(arrayOfString, new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface paramAnonymousDialogInterface, int paramAnonymousInt)
{
if (paramAnonymousInt == 0)
{
ContentValues localContentValues = new ContentValues();
localContentValues.put("title", "new-photo-name.jpg");
localContentValues.put("description", "Image capture by camera");
GetImageActivity.this.imageUri = GetImageActivity.this.getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, localContentValues);
Intent localIntent1 = new Intent("android.media.action.IMAGE_CAPTURE");
localIntent1.putExtra("output", GetImageActivity.this.imageUri);
GetImageActivity.this.startActivityForResult(localIntent1, 1800);
}
if (paramAnonymousInt == 1)
{
if (Build.VERSION.SDK_INT < 19)
{
Intent localIntent2 = new Intent();
localIntent2.setType("image/*");
localIntent2.setAction("android.intent.action.GET_CONTENT");
GetImageActivity.this.startActivityForResult(Intent.createChooser(localIntent2, "Select Picture"), 1);
}
}
else
return;
Intent localIntent3 = new Intent("android.intent.action.PICK", MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
GetImageActivity.this.startActivityForResult(Intent.createChooser(localIntent3, "Select Picture"), 1500);
}
});
localBuilder.setNeutralButton("cancel", new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface paramAnonymousDialogInterface, int paramAnonymousInt)
{
paramAnonymousDialogInterface.dismiss();
}
});
localBuilder.show();
}
private void startScan()
{
if (this.conn != null)
this.conn.disconnect();
this.conn = new MediaScannerConnection(this, this);
this.conn.connect();
}
public void cancel()
{
}
public void dismiss()
{
}
public String getPath(Uri paramUri)
{
Cursor localCursor = managedQuery(paramUri, new String[] { "_data" }, null, null, null);
String str = null;
if (localCursor != null)
{
int i = localCursor.getColumnIndexOrThrow("_data");
localCursor.moveToFirst();
str = localCursor.getString(i);
}
return str;
}
public String name(String paramString)
{
int i = 0;
for (int j = 0; ; j++)
{
if (j >= paramString.length())
{
this.filename = filePath.substring(i + 1, paramString.length());
return this.filename;
}
if (paramString.charAt(j) == '/')
i = j;
}
}
public void onActivityResult(int paramInt1, int paramInt2, Intent paramIntent)
{
if (paramInt2 == -1)
{
if (paramInt1 == 1)
while (true)
{
try
{
this.selectedImageUri = paramIntent.getData();
Toast.makeText(getApplicationContext(), "DATA " + filePath, 0).show();
filePath = getPath(this.selectedImageUri);
InputStream localInputStream2 = getContentResolver().openInputStream(this.selectedImageUri);
BitmapFactory.Options localOptions2 = new BitmapFactory.Options();
localOptions2.inSampleSize = 2;
localOptions2.inPurgeable = true;
byte[] arrayOfByte2 = new byte[1024];
localOptions2.inPreferredConfig = Bitmap.Config.RGB_565;
localOptions2.inTempStorage = arrayOfByte2;
this.picture = BitmapFactory.decodeStream(localInputStream2, null, localOptions2);
switch (new ExifInterface(filePath).getAttributeInt("Orientation", 1))
{
case 4:
case 5:
default:
this.img.setImageBitmap(this.picture);
String str4 = sizee(this.selectedImageUri);
Toast.makeText(getApplicationContext(), "Size of Image " + str4, 0).show();
return;
case 6:
rotateImage(this.picture, 90);
continue;
case 3:
}
}
catch (Exception localException3)
{
Toast.makeText(getApplicationContext(), "Error " + localException3.getMessage(), 0).show();
return;
}
rotateImage(this.picture, 180);
}
if (paramInt1 == 1500)
while (true)
{
try
{
this.selectedImageUri = paramIntent.getData();
getPathl(getApplicationContext(), this.selectedImageUri);
getContentResolver();
filePath = getPathl(getApplicationContext(), this.selectedImageUri);
InputStream localInputStream1 = getContentResolver().openInputStream(this.selectedImageUri);
BitmapFactory.Options localOptions1 = new BitmapFactory.Options();
localOptions1.inSampleSize = 2;
localOptions1.inPurgeable = true;
byte[] arrayOfByte1 = new byte[1024];
localOptions1.inPreferredConfig = Bitmap.Config.RGB_565;
localOptions1.inTempStorage = arrayOfByte1;
this.picture = BitmapFactory.decodeStream(localInputStream1, null, localOptions1);
switch (new ExifInterface(filePath).getAttributeInt("Orientation", 1))
{
case 4:
case 5:
default:
this.img.setImageBitmap(this.picture);
String str3 = sizee(this.selectedImageUri);
Toast.makeText(getApplicationContext(), "Size of Image " + str3, 0).show();
return;
case 6:
case 3:
}
}
catch (Exception localException2)
{
Toast.makeText(getApplicationContext(), "Error " + localException2.getMessage(), 0).show();
return;
}
rotateImage(this.picture, 90);
continue;
rotateImage(this.picture, 180);
}
if (paramInt1 == 1800)
{
filePath = null;
this.selectedImageUri = this.imageUri;
if (this.selectedImageUri != null)
while (true)
{
String str1;
try
{
str1 = this.selectedImageUri.getPath();
String str2 = getPath(this.selectedImageUri);
if (str2 != null)
{
filePath = str2;
if (filePath == null)
break;
Toast.makeText(getApplicationContext(), " path" + filePath, 1).show();
new Intent(getApplicationContext(), GetImageActivity.class);
cameraaa(filePath, this.selectedImageUri);
return;
}
}
catch (Exception localException1)
{
Toast.makeText(getApplicationContext(), "Internal error", 1).show();
Log.e(localException1.getClass().getName(), localException1.getMessage(), localException1);
return;
}
if (str1 != null)
{
filePath = str1;
}
else
{
Toast.makeText(getApplicationContext(), "Unknown path", 1).show();
Log.e("Bitmap", "Unknown path");
}
}
}
}
}
public void onCreate(Bundle paramBundle)
{
super.onCreate(paramBundle);
requestWindowFeature(1);
getWindow().setFlags(1024, 1024);
setContentView(2130903040);
Display localDisplay = getWindowManager().getDefaultDisplay();
this.width = localDisplay.getWidth();
this.height = localDisplay.getHeight();
final Button localButton = (Button)findViewById(2131296257);
final Spinner localSpinner = (Spinner)findViewById(2131296260);
final TextView localTextView = (TextView)findViewById(2131296259);
localButton.setVisibility(4);
localSpinner.setVisibility(4);
localTextView.setVisibility(4);
if (this.height <= 480)
{
localSpinner.setLayoutParams(new AbsoluteLayout.LayoutParams(-1, -2, 0, 20 + (this.height - this.height / 3)));
localTextView.setLayoutParams(new AbsoluteLayout.LayoutParams(this.width, 60, 0, -20 + (this.height - this.height / 3)));
localTextView.setText("Image Quality");
localTextView.setText("Image Quality");
this.img = ((ImageView)findViewById(2131296258));
this.img.setBackgroundResource(2130837504);
//first error is here
.......................................................................................
***(-160 + this.height);***
(-160 + this.height);
((int)(0.8D * this.width));
AbsoluteLayout.LayoutParams localLayoutParams1 = new AbsoluteLayout.LayoutParams((int)(0.8D * this.width), (int)(0.5D * this.height), (int)(this.width - 0.9D * this.width), (int)(this.height - 0.9D * this.height));
this.img.setLayoutParams(localLayoutParams1);
ImageView localImageView = this.img;
View.OnClickListener local1 = new View.OnClickListener()
{
public void onClick(View paramAnonymousView)
{
GetImageActivity.this.img.setImageDrawable(null);
GetImageActivity.this.img.setBackgroundResource(2130837504);
localButton.setVisibility(0);
localSpinner.setVisibility(0);
localTextView.setVisibility(0);
GetImageActivity.this.openAddPhoto();
}
};
localImageView.setOnClickListener(local1);
if (this.height > 480)
break label505;
localButton.setBackgroundResource(2130837507);
(-160 + this.height);
}
for (AbsoluteLayout.LayoutParams localLayoutParams2 = new AbsoluteLayout.LayoutParams(50, 50, -25 + this.width / 2, -51 + this.height); ; localLayoutParams2 = new AbsoluteLayout.LayoutParams(170, 170, -85 + this.width / 2, -170 + this.height))
{
localButton.setLayoutParams(localLayoutParams2);
View.OnClickListener local2 = new View.OnClickListener()
{
public void onClick(View paramAnonymousView)
{
}
};
localButton.setOnClickListener(local2);
return;
localSpinner.setLayoutParams(new AbsoluteLayout.LayoutParams(-1, -2, 0, 30 + (this.height - this.height / 3)));
localTextView.setLayoutParams(new AbsoluteLayout.LayoutParams(this.width, 60, 0, -10 + (this.height - this.height / 3)));
break;
label505: localButton.setBackgroundResource(2130837506);
(-160 + this.height);
}
}
public boolean onCreateOptionsMenu(Menu paramMenu)
{
getMenuInflater().inflate(2131230720, paramMenu);
return true;
}
public void onMediaScannerConnected()
{
try
{
this.conn.scanFile(filePath, "image/*");
return;
}
catch (IllegalStateException localIllegalStateException)
{
}
}
public boolean onOptionsItemSelected(MenuItem paramMenuItem)
{
if (paramMenuItem.getItemId() == 2131296262)
shareagain();
while (true)
{
return true;
if (paramMenuItem.getItemId() == 2131296263)
try
{
startActivity(new Intent(this, readddme.class));
}
catch (Exception localException)
{
Toast.makeText(getApplicationContext(), "Error " + localException.getMessage(), 0).show();
}
else if (paramMenuItem.getItemId() == 2131296264)
System.exit(0);
}
}
public void onScanCompleted(String paramString, Uri paramUri)
{
this.conn.disconnect();
}
public void rotateImage(Bitmap paramBitmap, int paramInt)
{
Matrix localMatrix = new Matrix();
localMatrix.setRotate(paramInt);
this.picture = Bitmap.createBitmap(paramBitmap, 0, 0, paramBitmap.getWidth(), paramBitmap.getHeight(), localMatrix, true);
}
public void share()
{
Intent localIntent = new Intent("android.intent.action.SEND");
localIntent.setType("text/plain");
localIntent.putExtra("android.intent.extra.SUBJECT", "#RABIDO");
localIntent.putExtra("android.intent.extra.TEXT", "#RABIDO");
localIntent.setType("image/*");
localIntent.putExtra("android.intent.extra.STREAM", this.selectedImageUri);
startActivity(Intent.createChooser(localIntent, "Share Image"));
}
public void shareagain()
{
Intent localIntent = new Intent("android.intent.action.SEND");
localIntent.setType("text/plain");
localIntent.putExtra("android.intent.extra.TEXT", "Check out 'RABIDO' - https://play.google.com/store/apps/details?id=decrease.image.uploader");
startActivity(Intent.createChooser(localIntent, "Share via"));
}
public String sizee(Uri paramUri)
{
Object localObject;
try
{
InputStream localInputStream = getContentResolver().openInputStream(paramUri);
byte[] arrayOfByte = new byte[1024];
int i = 0;
float f;
while (true)
{
if (localInputStream.read(arrayOfByte) == -1)
{
f = i / 1000;
if (f >= 1000.0F)
break;
localObject = " " + i / 1000 + " KB";
break label164;
}
i += arrayOfByte.length;
}
String str = " " + f / 1000.0F + " MB";
localObject = str;
}
catch (Exception localException)
{
Toast.makeText(getApplicationContext(), "Error 5 " + localException.getMessage(), 0).show();
return "";
}
//second is here
..................................................................
label164: return localObject;
}
}
For the First error can you try something like this:
(this.height = this.height - 160);
The error indicates you are trying to make an assignment operation but you have not put a variable in the left hand side of the equation.
there may also be a short hand way to do this such as:
(this.height =- 160);
for the second error is seems that you have declared "localObject" as an Object.
can you just declare it as a String. seems that you are assigning a string to it and then wanting to return a string. See if that works.

What am I missing in this activity that could be causing a memory leak/OOM error?

Here's what it looks like. I'm hoping a visual will help you help me!
I have tested it on three devices and four emulators with various screen sizes (so different image sizes) and versions of Android, and I haven't gotten any out of memory errors. I let my 3-year-old repeatedly pound on the animals and flip through them like crazy and still no OOM.
According to Google Play there are close to 200 installations since September 3rd 2013. I've only gotten one report of an OOM error so far, but now I'm worried that they are going to start rolling in. I'm including the whole activity in case one of my overridden methods has relevant information or something like that. This is my first published app so please excuse any newbie mistakes and feel free to criticize anything (as long as you include some suggestions for correcting it!)
setImages method from Game2Show (includes line 235, 'int currentAnimalImage...'):
private void setImages() {
//Get current letter and switch in name, letter and image that corresponds.
getLetter();
String l_img = "letter_" + currentLetter;
String a_img = "animal_" + currentLetter;
String n_img = "name_" + currentLetter;
int currentLetterImage = getResources().getIdentifier(l_img, "drawable", this.getPackageName());
ImageView l_iv = (ImageView) findViewById(R.id.current_letter);
l_iv.setImageResource(currentLetterImage);
int currentAnimalImage = getResources().getIdentifier(a_img, "drawable", this.getPackageName());
ImageView a_iv = (ImageView) findViewById(R.id.animal_image);
a_iv.setImageResource(currentAnimalImage);
int currentAnimalName = getResources().getIdentifier(n_img, "drawable", this.getPackageName());
ImageView n_iv = (ImageView) findViewById(R.id.animal_name);
n_iv.setImageResource(currentAnimalName);
Log.v(TAG, "voice: " + voice);
Log.v(TAG, "Config.alphabetSoundsArray_voice1: " + Config.alphabetSoundsArray_voice1);
Log.v(TAG, "Config.alphabetSoundsArray_voice2: " + Config.alphabetSoundsArray_voice2);
Log.v(TAG, "currentIndex: " + currentIndex);
if (Config.alphabetSoundsArray_voice1[currentIndex] !=0){
if (voice == 1) {
Sound(Config.alphabetSoundsArray_voice1[currentIndex]);
}
}
else {
}
if (Config.alphabetSoundsArray_voice2[currentIndex] !=0){
if (voice == 2) {
Sound(Config.alphabetSoundsArray_voice2[currentIndex]);
}
}
else {
}
System.gc();
}
Stack trace:
java.lang.OutOfMemoryError
at android.graphics.Bitmap.nativeCreate(Native Method)
at android.graphics.Bitmap.createBitmap(Bitmap.java:605)
at android.graphics.Bitmap.createBitmap(Bitmap.java:551)
at android.graphics.Bitmap.createScaledBitmap(Bitmap.java:437)
at android.graphics.BitmapFactory.finishDecode(BitmapFactory.java:524)
at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:499)
at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:351)
at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:773)
at android.content.res.Resources.loadDrawable(Resources.java:1937)
at android.content.res.Resources.getDrawable(Resources.java:664)
at android.widget.ImageView.resolveUri(ImageView.java:542)
at android.widget.ImageView.setImageResource(ImageView.java:315)
at com.zenlifegames.teachtryabc123.Game2Show.setImages(Game2Show.java:235)
at com.zenlifegames.teachtryabc123.Game2Show.onCreate(Game2Show.java:57)
at android.app.Activity.performCreate(Activity.java:4465)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
at android.app.ActivityThread.access$600(ActivityThread.java:123)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4424)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
at dalvik.system.NativeStart.main(Native Method)
Game2Show:
package com.zenlifegames.teachtryabc123;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.app.ActivityManager;
import android.app.ActivityManager.RunningServiceInfo;
import android.app.ActivityManager.RunningTaskInfo;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.graphics.LinearGradient;
import android.graphics.Shader;
import android.graphics.Shader.TileMode;
import android.graphics.Typeface;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
public class Game2Show extends Activity {
private TextView textViewa;
private ImageView homeClicked;
int voice;
Handler handler = new Handler();
Intent i;
int currentIndex = 1;
String currentLetter;
ArrayList<Integer> alphabetNums;
String TAG = "Game2Show: ";
//private final String TAG = "Game2Show: ";
private int minAlphaRange = 1;
private int maxAlphaRange = 26;
#SuppressWarnings("deprecation")
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_game2_show);
i = new Intent(Game2Show.this, MyMusicService.class);
getMyViews();
setupPrefs();
Config.getPrefs(this);
musicToggleCheck();
userPreferences();
setFont();
setupAlphabetArray();
setImages();
Toast.makeText(Game2Show.this,
"Touch the letters, animals and words to hear audio.",
Toast.LENGTH_SHORT).show();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
return false;
}
#Override
public boolean onPrepareOptionsMenu(Menu menu) {
Intent settingsActivity = new Intent(getBaseContext(),
Preferences.class);
startActivity(settingsActivity);
return super.onPrepareOptionsMenu(menu);
}
#Override
public void onBackPressed() {
Intent intent = new Intent(this, GameSelector.class);
startActivity(intent);
super.onBackPressed();
}
public void returnHome(View view) {
homeClicked.setImageResource(R.drawable.homebuttonclicked);
if (Config.soundArray[0] !=0){Sound(Config.soundArray[0]);}
Intent intent = new Intent(this, GameSelector.class);
startActivity(intent);
}
private void musicToggleCheck() {
ImageButton musicToggleButton =(ImageButton)findViewById(R.id.music_toggle);
if (isMyServiceRunning()) {
musicToggleButton.setImageResource(R.drawable.music_toggle);
}
else {
musicToggleButton.setImageResource(R.drawable.music_toggle_off);
}
}
private void getMyViews() {
TextView textViewa = (TextView)findViewById(R.id.childs_name);
this.textViewa = textViewa;
final ImageView homeClicked = (ImageView) findViewById(R.id.home);
this.homeClicked = homeClicked;
}
private void setFont() {
Typeface t = Typeface.createFromAsset(this.getAssets(), "fonts/pen.ttf");
textViewa.setTypeface(t);
int[] color = {Color.RED, Color.BLUE};
float[] position = {0, 1};
TileMode tile_mode = TileMode.MIRROR; // Or TileMode.REPEAT;
LinearGradient lin_grad = new LinearGradient(0, 0, 0, 50,color,position, tile_mode);
Shader shader_gradient = lin_grad;
textViewa.getPaint().setShader(shader_gradient);
}
private void userPreferences() {
//Store childs name
textViewa.setText(Config.childsNameString);
//Set voice choice
int getVoiceChoice = Integer.parseInt(Config.storeVoiceChoice);
if (getVoiceChoice == 1) {
int voice = 1; //Mom
this.voice = voice;
}
else {
int voice = 2; //yg
this.voice = voice;
}
//Log.v(TAG, "voice: " + voice);
}
private void setupAlphabetArray() {
alphabetNums = new ArrayList<Integer>(maxAlphaRange);
for(currentIndex = minAlphaRange; currentIndex <= maxAlphaRange; currentIndex++) {
alphabetNums.add(currentIndex);
}
}
private void getLetter(){
if (currentIndex < minAlphaRange)
currentIndex = maxAlphaRange;
if (currentIndex > maxAlphaRange)
currentIndex = minAlphaRange;
if (currentIndex == 1) currentLetter = "a";
if (currentIndex == 2) currentLetter = "b";
if (currentIndex == 3) currentLetter = "c";
if (currentIndex == 4) currentLetter = "d";
if (currentIndex == 5) currentLetter = "e";
if (currentIndex == 6) currentLetter = "f";
if (currentIndex == 7) currentLetter = "g";
if (currentIndex == 8) currentLetter = "h";
if (currentIndex == 9) currentLetter = "i";
if (currentIndex == 10) currentLetter = "j";
if (currentIndex == 11) currentLetter = "k";
if (currentIndex == 12) currentLetter = "l";
if (currentIndex == 13) currentLetter = "m";
if (currentIndex == 14) currentLetter = "n";
if (currentIndex == 15) currentLetter = "o";
if (currentIndex == 16) currentLetter = "p";
if (currentIndex == 17) currentLetter = "q";
if (currentIndex == 18) currentLetter = "r";
if (currentIndex == 19) currentLetter = "s";
if (currentIndex == 20) currentLetter = "t";
if (currentIndex == 21) currentLetter = "u";
if (currentIndex == 22) currentLetter = "v";
if (currentIndex == 23) currentLetter = "w";
if (currentIndex == 24) currentLetter = "x";
if (currentIndex == 25) currentLetter = "y";
if (currentIndex == 26) currentLetter = "z";
}
public void goBack(View view) {
if (Config.soundArray[0] !=0){
Sound(Config.soundArray[0]);
}
currentIndex--;
setImages();
}
public void goForward(View view) {
if (Config.soundArray[0] !=0){
Sound(Config.soundArray[0]);
}
currentIndex++;
setImages();
}
public void sayLetter(View view) {
if (voice == 1) {
if (Config.alphabetSoundsArray_voice1[currentIndex] !=0){
Sound(Config.alphabetSoundsArray_voice1[currentIndex]);
}
}
if (voice == 2) {
if (Config.alphabetSoundsArray_voice2[currentIndex] !=0){
Sound(Config.alphabetSoundsArray_voice2[currentIndex]);
}
}
}
public void sayAnimal(View v) {
if (voice == 1) {
if (Config.animalNamesArray_voice1[currentIndex] !=0){
Sound(Config.animalNamesArray_voice1[currentIndex]);
}
}
if (voice == 2) {
if (Config.animalNamesArray_voice2[currentIndex] !=0){
Sound(Config.animalNamesArray_voice2[currentIndex]);
}
}
}
public void animalNoise(View v) {
if (Config.animalSoundsArray[currentIndex] !=0){
Sound(Config.animalSoundsArray[currentIndex]);
}
}
public void sideLetterClicked(View v) {
int id = v.getId();
if (id == R.id.side_letter_1)
currentIndex=1;
else if (id == R.id.side_letter_2) currentIndex=2;
else if (id == R.id.side_letter_3) currentIndex=3;
else if (id == R.id.side_letter_4) currentIndex=4;
else if (id == R.id.side_letter_5) currentIndex=5;
else if (id == R.id.side_letter_6) currentIndex=6;
else if (id == R.id.side_letter_7) currentIndex=7;
else if (id == R.id.side_letter_8) currentIndex=8;
else if (id == R.id.side_letter_9) currentIndex=9;
else if (id == R.id.side_letter_10) currentIndex=10;
else if (id == R.id.side_letter_11) currentIndex=11;
else if (id == R.id.side_letter_12) currentIndex=12;
else if (id == R.id.side_letter_13) currentIndex=13;
else if (id == R.id.side_letter_14) currentIndex=14;
else if (id == R.id.side_letter_15) currentIndex=15;
else if (id == R.id.side_letter_16) currentIndex=16;
else if (id == R.id.side_letter_17) currentIndex=17;
else if (id == R.id.side_letter_18) currentIndex=18;
else if (id == R.id.side_letter_19) currentIndex=19;
else if (id == R.id.side_letter_20) currentIndex=20;
else if (id == R.id.side_letter_21) currentIndex=21;
else if (id == R.id.side_letter_22) currentIndex=22;
else if (id == R.id.side_letter_23) currentIndex=23;
else if (id == R.id.side_letter_24) currentIndex=24;
else if (id == R.id.side_letter_25) currentIndex=25;
else if (id == R.id.side_letter_26) currentIndex=26;
else {
}
setImages();
}
private void setImages() {
//Get current letter and switch in name, letter and image that corresponds.
getLetter();
String l_img = "letter_" + currentLetter;
String a_img = "animal_" + currentLetter;
String n_img = "name_" + currentLetter;
int currentLetterImage = getResources().getIdentifier(l_img, "drawable", this.getPackageName());
ImageView l_iv = (ImageView) findViewById(R.id.current_letter);
l_iv.setImageResource(currentLetterImage);
int currentAnimalImage = getResources().getIdentifier(a_img, "drawable", this.getPackageName());
ImageView a_iv = (ImageView) findViewById(R.id.animal_image);
a_iv.setImageResource(currentAnimalImage);
int currentAnimalName = getResources().getIdentifier(n_img, "drawable", this.getPackageName());
ImageView n_iv = (ImageView) findViewById(R.id.animal_name);
n_iv.setImageResource(currentAnimalName);
Log.v(TAG, "voice: " + voice);
Log.v(TAG, "Config.alphabetSoundsArray_voice1: " + Config.alphabetSoundsArray_voice1);
Log.v(TAG, "Config.alphabetSoundsArray_voice2: " + Config.alphabetSoundsArray_voice2);
Log.v(TAG, "currentIndex: " + currentIndex);
if (Config.alphabetSoundsArray_voice1[currentIndex] !=0){
if (voice == 1) {
Sound(Config.alphabetSoundsArray_voice1[currentIndex]);
}
}
else {
}
if (Config.alphabetSoundsArray_voice2[currentIndex] !=0){
if (voice == 2) {
Sound(Config.alphabetSoundsArray_voice2[currentIndex]);
}
}
else {
}
System.gc();
}
//new
#Override
protected void onPause() {
super.onPause();
//Implemented to force music to stop when home is pressed.
Context context = getApplicationContext();
ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
List<RunningTaskInfo> taskInfo = am.getRunningTasks(1);
if (!taskInfo.isEmpty()) {
ComponentName topActivity = taskInfo.get(0).topActivity;
if (!topActivity.getPackageName().equals(context.getPackageName())) {
if(isMyServiceRunning()){
stopService(i);
}
}
}
}
#Override
protected void onRestart() {
super.onRestart();
Intent intent = new Intent(this, MainActivity.class);
startActivity(intent);
}
public void setupPrefs() {
ImageButton settingsClicked = ((ImageButton) findViewById(R.id.prefButton));
settingsClicked.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
ImageView settingsClicked = ((ImageView) findViewById(R.id.prefButton));
settingsClicked.setImageResource(R.drawable.settings_button_clicked);
MediaPlayer buttonClicked = MediaPlayer.create(Game2Show.this, R.raw.click);
buttonClicked.start();
Intent settingsActivity = new Intent(getBaseContext(),
Preferences.class);
startActivity(settingsActivity);
}
});
}
public boolean isMyServiceRunning() {
ActivityManager manager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
for (RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE)) {
if (MyMusicService.class.getName().equals(service.service.getClassName())) {
return true;
}
}
return false;
}
public void musicToggle(View v) {
final ImageButton musicToggleButton =(ImageButton)findViewById(R.id.music_toggle);
if ((!isMyServiceRunning())) {
startService(i);
Toast.makeText(Game2Show.this, "Music on.", Toast.LENGTH_SHORT).show();
musicToggleButton.setImageResource(R.drawable.music_toggle);
}
else {
stopService(i);
Toast.makeText(Game2Show.this, "Music off.", Toast.LENGTH_SHORT).show();
musicToggleButton.setImageResource(R.drawable.music_toggle_off);
}
}
public void Sound(int s){
AudioManager audioManager = (AudioManager) getSystemService(AUDIO_SERVICE);
float volume = (float) audioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
Config.spool.play(s, volume, volume, 1, 0, 1f);
};
#Override
protected void onResume() {
Log.v(TAG, "onResume called.");
super.onResume();
if (Config.spool != null) {
}
else {
Intent intent = new Intent(this, MainActivity.class);
startActivity(intent);
}
}
}

Automatic update battery level in android

I am using this code to show battery level in my app. It works fine but doesn't update battery level automatically.
What should I do to update the battery level automatically.
public class MainActivity extends Activity {
private TextView txtBattery;
private BroadcastReceiver mBatteryLevelReciver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
context.unregisterReceiver(this);
//int rawLevel = intent.getIntExtra("level", -1);
int rawLevel = intent.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
//int scale = intent.getIntExtra("scale", -1);
int scale = intent.getIntExtra(BatteryManager.EXTRA_SCALE, -1);
int level = -1;
if (rawLevel >= 0 && scale > 0) {
level = (rawLevel * 100) / scale;
}
txtBattery.setText("Battery3 Level Remaining :" + level + "%");
}
};
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
txtBattery = (TextView) findViewById(R.id.batterymeter_txt);
batteryLevel();
}
private void batteryLevel() {
IntentFilter batteryLevelFliter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
registerReceiver(mBatteryLevelReciver, batteryLevelFliter);
}
}
Move the receiver variable to be a class attribute so it will be in memory when the intent is received:
public class Main extends Activity {
private TextView txtBattery;
private BroadcastReceiver mBatteryLevelReciver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
//int rawLevel = intent.getIntExtra("level", -1);
int rawLevel = intent.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
//int scale = intent.getIntExtra("scale", -1);
int scale = intent.getIntExtra(BatteryManager.EXTRA_SCALE, -1);
int level = -1;
if (rawLevel >= 0 && scale > 0) {
level = (rawLevel * 100) / scale;
}
txtBattery.setText("Battery Level Remaining :" + level + "%");
}
};
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
txtBattery = (TextView) findViewById(R.id.batterymeter_txt);
batteryLevel();
}
private void batteryLevel() {
IntentFilter batteryLevelFliter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
registerReceiver(batteryLevelReciver, batteryLevelFliter);
}
Why do you unregister your BroadcastReceiver in your onReceive() method?
context.unregisterReceiver(this);
Remove that.
try this code..
public class AndroidBattery extends Activity {
private TextView batteryLevel, batteryVoltage, batteryTemperature,
batteryTechnology, batteryStatus, batteryHealth;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
batteryLevel = (TextView)findViewById(R.id.batterylevel);
batteryVoltage = (TextView)findViewById(R.id.batteryvoltage);
batteryTemperature = (TextView)findViewById(R.id.batterytemperature);
batteryTechnology = (TextView)findViewById(R.id.batterytechology);
batteryStatus = (TextView)findViewById(R.id.batterystatus);
batteryHealth = (TextView)findViewById(R.id.batteryhealth);
this.registerReceiver(this.myBatteryReceiver,
new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
}
private BroadcastReceiver myBatteryReceiver
= new BroadcastReceiver(){
#Override
public void onReceive(Context arg0, Intent arg1) {
// TODO Auto-generated method stub
if (arg1.getAction().equals(Intent.ACTION_BATTERY_CHANGED)){
batteryLevel.setText("Level: "
+ String.valueOf(arg1.getIntExtra("level", 0)) + "%");
batteryVoltage.setText("Voltage: "
+ String.valueOf((float)arg1.getIntExtra("voltage", 0)/1000) + "V");
batteryTemperature.setText("Temperature: "
+ String.valueOf((float)arg1.getIntExtra("temperature", 0)/10) + "c");
batteryTechnology.setText("Technology: " + arg1.getStringExtra("technology"));
int status = arg1.getIntExtra("status", BatteryManager.BATTERY_STATUS_UNKNOWN);
String strStatus;
if (status == BatteryManager.BATTERY_STATUS_CHARGING){
strStatus = "Charging";
} else if (status == BatteryManager.BATTERY_STATUS_DISCHARGING){
strStatus = "Dis-charging";
} else if (status == BatteryManager.BATTERY_STATUS_NOT_CHARGING){
strStatus = "Not charging";
} else if (status == BatteryManager.BATTERY_STATUS_FULL){
strStatus = "Full";
} else {
strStatus = "Unknown";
}
batteryStatus.setText("Status: " + strStatus);
int health = arg1.getIntExtra("health", BatteryManager.BATTERY_HEALTH_UNKNOWN);
String strHealth;
if (health == BatteryManager.BATTERY_HEALTH_GOOD){
strHealth = "Good";
} else if (health == BatteryManager.BATTERY_HEALTH_OVERHEAT){
strHealth = "Over Heat";
} else if (health == BatteryManager.BATTERY_HEALTH_DEAD){
strHealth = "Dead";
} else if (health == BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE){
strHealth = "Over Voltage";
} else if (health == BatteryManager.BATTERY_HEALTH_UNSPECIFIED_FAILURE){
strHealth = "Unspecified Failure";
} else{
strHealth = "Unknown";
}
batteryHealth.setText("Health: " + strHealth);
}
}
};
}

Unable to receive values more than 255 on Android device from Arduino

I am developing an application to receive data on an Android device from an Arduino. It displays values only up to 255 when I convert it to integer, but I want those values which are sent by the Arduino board. I have tried converting them to strings but that didn't work either.
How can I solve this problem?
Here's the code running on the Android device:
package pkg.MultipleDataReceiveFromArduinoArray;
import java.io.FileDescriptor;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import pkg.MultipleDataReceiveFromArduino.R;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.ParcelFileDescriptor;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import com.android.future.usb.UsbAccessory;
import com.android.future.usb.UsbManager;
public class MultipleDataReceiveFromArduinoActivity extends
Activity implements Runnable {
private TextView txtReceivedBytes;
private TextView txtWaterLitres;
private TextView txtSensor1;
private TextView txtSensor2;
private TextView txtSensor3;
private EditText etCallibrationValue;
private Button btnSetCallibrationValue;
private static final String ACTION_USB_PERMISSION =
"com.google.android.DemoKit.action.USB_PERMISSION";
private UsbManager mUsbManager;
private PendingIntent mPermissionIntent;
private boolean mPermissionRequestPending;
private UsbAccessory mAccessory;
private ParcelFileDescriptor mFileDescriptor;
private FileInputStream mInputStream;
private FileOutputStream mOutputStream;
int countWaterVol = 0;
private int intCallibrationValue = 270;
private static final int MESSAGE_TEMPERATURE = 1;
private static final int MESSAGE_HUMIDITY = 2;
private static final int MESSAGE_WATERLEVEL = 3;
private static final byte COMMAND_OPEN_DOOR = 0x01;
private static final byte COMMAND_CLOSE_DOOR = 0x02;
protected class TelemetryPacket {
private int value;
public TelemetryPacket(int value) {
this.value = value;
}
public int getValue() {
return value;
}
}
private int composeInt(byte hi, byte lo) {
int val = (int) hi & 0xff;
val *= 256;
val += (int) lo & 0xff;
return val;
}
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
txtReceivedBytes=(TextView)findViewById(R.id.txtReceivedBytes);
txtWaterLitres =(TextView)findViewById(R.id.txtWaterLitres);
txtSensor1 = (TextView) findViewById(R.id.txtSensor1);
txtSensor2 =(TextView)findViewById(R.id.txtSensor2);
txtSensor3 =(TextView)findViewById(R.id.txtSensor3);
etCallibrationValue = (EditText)findViewById(R.id.etCallibrationValue);
btnSetCallibrationValue =
(Button)findViewById(R.id.btnSetCallibrationValue);
setupAccessory();
btnSetCallibrationValue.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
intCallibrationValue =
Integer.parseInt(etCallibrationValue.getText().toString());
Toast.makeText(getApplicationContext(),
"Callibration Value:" + intCallibrationValue,
Toast.LENGTH_SHORT).show();
}
});
}
#Override
public Object onRetainNonConfigurationInstance() {
if (mAccessory != null) {
return mAccessory;
} else {
return super.onRetainNonConfigurationInstance();
}
}
#Override
public void onResume() {
super.onResume();
if (mInputStream != null && mOutputStream != null) {
// streams were not null");
return;
}
// streams were null");
UsbAccessory[] accessories = mUsbManager.getAccessoryList();
UsbAccessory accessory = (accessories == null ? null : accessories[0]);
if (accessory != null) {
if (mUsbManager.hasPermission(accessory)) {
openAccessory(accessory);
} else {
synchronized (mUsbReceiver) {
if (!mPermissionRequestPending) {
mUsbManager.requestPermission(
accessory, mPermissionIntent);
mPermissionRequestPending = true;
}
}
}
} else {
// null accessory
}
}
#Override
public void onPause() {
super.onPause();
}
#Override
public void onDestroy() {
unregisterReceiver(mUsbReceiver);
super.onDestroy();
}
Handler mHandler = new Handler() {
#Override
public void handleMessage(Message msg) {
//TelemetryPacket p = (TelemetryPacket) msg.obj;
ValueMsg t = (ValueMsg) msg.obj;
txtReceivedBytes.setText("Received Bytes: "+t.getRet());
if (t.getReading4()==1) {
countWaterVol = countWaterVol+1;
txtWaterLitres.setText("Water Produced in Litres:"+
(countWaterVol+"\n"+"Interrupt Signal"+t.getReading3());
} else {
}
txtSensor1.setText("S 1: "+t.getReading1()+","+
"Reading 2: "+t.getReading2());
txtSensor2.setText("S 3: "+t.getReading3()+","+
"Reading 4: "+t.getReading4());
txtSensor3.setText("S 5: "+t.getReading5()+","+
"Reading 6: "+t.getReading6());
Alets alerts = new Alets();
}
};
private void setupAccessory() {
mUsbManager = UsbManager.getInstance(this);
mPermissionIntent = PendingIntent.getBroadcast(this, 0, new Intent(
ACTION_USB_PERMISSION), 0);
IntentFilter filter = new IntentFilter(ACTION_USB_PERMISSION);
filter.addAction(UsbManager.ACTION_USB_ACCESSORY_DETACHED);
registerReceiver(mUsbReceiver, filter);
if (getLastNonConfigurationInstance() != null) {
mAccessory = (UsbAccessory) getLastNonConfigurationInstance();
openAccessory(mAccessory);
}
}
private void openAccessory(UsbAccessory accessory) {
mFileDescriptor = mUsbManager.openAccessory(accessory);
if (mFileDescriptor != null) {
mAccessory = accessory;
FileDescriptor fd = mFileDescriptor.getFileDescriptor();
mInputStream = new FileInputStream(fd);
mOutputStream = new FileOutputStream(fd);
Thread thread = new Thread(null, this, "OpenAccessoryTest");
thread.start();
// Accessory opened
} else {
// failed to open accessory
}
}
private void closeAccessory() {
try {
if (mFileDescriptor != null) {
mFileDescriptor.close();
}
} catch (IOException e) {
} finally {
mFileDescriptor = null;
mAccessory = null;
}
}
public void run() {
int ret = 0;
//byte[] buffer = new byte[16384];
byte[] buffer = new byte[65536];
int i;
while (true) { // read data
try {
ret = mInputStream.read(buffer);
//ret= ret/3;
} catch (IOException e) {
break;
}
i = 0;
while (i < ret) {
int len = ret - i;
// if (len >= 1) {
int value = (int) buffer[0];
Message m = Message.obtain(mHandler);
m.obj = new ValueMsg('f',value,ret,buffer[1],buffer[2],
buffer[3],buffer[4],buffer[5]);
mHandler.sendMessage(m);
i += 1;
}
}
}
public static final long unsignedIntToLong(byte[] b)
{
long l = 0;
l |= b[0] & 0xFF;
l <<= 8;
l |= b[1] & 0xFF;
l <<= 8;
l |= b[2] & 0xFF;
l <<= 8;
l |= b[3] & 0xFF;
return l;
}
public static int unsignedByteToInt(byte b) {
return (int) b & 0x10;
}
private final BroadcastReceiver mUsbReceiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (ACTION_USB_PERMISSION.equals(action)) {
synchronized (this) {
UsbAccessory accessory = UsbManager.getAccessory(intent);
if (intent.getBooleanExtra(
UsbManager.EXTRA_PERMISSION_GRANTED, false)) {
openAccessory(accessory);
} else {
// USB permission denied
}
}
} else if (UsbManager.ACTION_USB_ACCESSORY_DETACHED.equals(action)) {
UsbAccessory accessory = UsbManager.getAccessory(intent);
if (accessory != null && accessory.equals(mAccessory)) {
// accessory detached
closeAccessory();
}
}
}
};
}
And here's the Arduino code (sketch):
#include <Usb.h>
#include <adk.h>
uint8_t b;
USB Usb;
ADK adk(&Usb,
"Ashok Kateshiya", // Manufacturer Name
"analog TEST", // Model Name
"TDS test ", // Description (user-visible string)
"0.1", // Version
"http://www.ashokkateshiya.co.cc",
"123456789"); // Serial Number (optional)
#define tds_pin A15
#define flow_pin 22
#define LLS_pin 49
float avg[10];
float value = 0;
int count;
int pin_state = 0, pin_old_state = 0;
int pulse_counter = 0;
int LLS_state;
int LLS_flag = 0;
int sensor_flag = 0;
int timer_flag = 0;
uint8_t msg[7] = { 0x00 };
uint16_t len = sizeof(msg);
uint8_t rcode;
void setup()
{
Serial.begin(115200);
Serial.print("\r\nADK demo start");
if (Usb.Init() == -1)
{
Serial.print("\r\nOSCOKIRQ failed to assert");
while(1); // halt
}
pinMode(tds_pin, INPUT);
pinMode(flow_pin, INPUT);
pinMode(LLS_pin, INPUT);
digitalWrite(LLS_pin, HIGH);
digitalWrite(flow_pin, HIGH);
TIMSK1 = 0x01;
TCCR1A = 0x00;
TCNT1 = 0x85EF;
TCCR1B = 0x05;
}
void loop()
{
Usb.Task();
if (adk.isReady() == false)
{
return;
}
TDS();
flow();
LLS();
}
void TDS()
{
for (count = 0; count < 10; count++)
{
avg[count] = analogRead(tds_pin);
}
for (count = 0; count < 10; count ++)
{
if (count == 0)
{
value = avg[count];
}
else
{
value = value + avg[count];
}
}
if (len > 0)
{
msg[0] = 0x1;
msg[1] = value/10;
rcode = adk.SndData (6, msg );
Serial.print("TDS 0 : ");
Serial.println(msg[0]);
Serial.print("TDS 1 : ");
Serial.println(msg[1]);
delay(10);
}
if (rcode && rcode != hrNAK)
USBTRACE2("DATA rcv :", rcode);
}
void flow()
{
pin_state = digitalRead(flow_pin);
if (pin_state == LOW)
{
pin_old_state = pin_state;
}
if ((pin_state == HIGH) && (pin_old_state == LOW))
{
pin_old_state = pin_state;
pulse_counter = (pulse_counter + 1);
sensor_flag = 1;
}
if ((pulse_counter / 25 == 1) && (sensor_flag == 1))
{
pulse_counter = 0;
sensor_flag = 0;
msg[2] = 0x2;
msg[3] = 1;
rcode = adk.SndData (6, msg );
Serial.print("value :");
Serial.println(msg[3]);
if (rcode && rcode != hrNAK)
{
USBTRACE2 ("USB DATA : ", rcode);
}
}
else
{
msg[2] = 0x2;
msg[3] = 0;
rcode = adk.SndData (6, msg );
Serial.print("value :");
Serial.println(msg[3]);
if (rcode && rcode != hrNAK)
{
USBTRACE2 ("USB DATA : ", rcode);
}
}
delay(10);
}
void LLS()
{
LLS_state = digitalRead(LLS_pin);
if (LLS_state != 0)
{
if (len > 0)
{
msg[4] = 0x3;
msg[5] = 0x0;
rcode = adk.SndData (6, msg );
Serial.print("LLS 4 : ");
Serial.println(msg[4]);
Serial.print("LLS 5 : ");
Serial.println(msg[5]);
}
}
else
{
msg[4] = 0x3;
msg[5] = 0x1;
rcode = adk.SndData (6, msg );
Serial.print("LLS 0 : ");
Serial.println(msg[4]);
Serial.print("LLS 2 : ");
Serial.println(msg[5]);
}
if (rcode && rcode != hrNAK)
USBTRACE2("DATA rcv :", rcode);
delay(10);
}
/****** timer overflow *******/
ISR(TIMER1_OVF_vect)
{
TCNT1 = 0x85EF;
if (pin_state == pin_old_state )
{
timer_flag = 1;
}
}
It looks like the problem is in the Arduino sketch. The msg array contains (unsigned) bytes which have a maximum value of 255.
The line:
msg[1] = value/10
implicitly truncates value/10 (which is an integer between 0 and 1023 - see http://arduino.cc/en/Reference/analogRead) to a maximum of 255.
To send value/10 you'll need to split it over 2 bytes. For example:
msg[1] = (uint8_t) (i & 0xFF);
msg[2] = (uint8_t) ((i >> 8) & 0xFF);
And msg will have to be one byte longer to accomodate.
On the Android (Java) side you'll need to do something like:
int value = (int) buffer[0];
// ...
int tds = buffer[1] + (buffer[2] << 8);
m.obj = new ValueMsg('f', value, ret, tds,
buffer[3], buffer[4], buffer[5], buffer[6]);
which will require a change to the definition of ValueMsg to accomodate.
Also, there may be a problem with the calls to SndData (assuming the library being used here is the USB_Host_Shield_2.0) as they always send 6 bytes even though in the first time through loop all 6 bytes of msg won't have been initialized.

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