I have external package class (my custom library), which I want to include in the project. It uses Activity, but shows error as you see.
If I place this command in main project class, it works well... What to do?
Here is the code:
package com.__MyDefaultLibrary;
import android.content.Intent;
import android.content.SharedPreferences;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.preference.PreferenceManager;
import android.view.View;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.view.animation.LinearInterpolator;
import android.view.animation.ScaleAnimation;
import android.widget.*;
import java.io.File;
import java.util.Calendar;
//
import android.app.Activity;
import com.oceanesa.samplevideorecorder.R;
public class __MyDefaultFunctions{
public android.app.Activity actv1 = android.app.Activity;
public void Initt(){
PreferenceManager.setDefaultValues(actv1.getBaseContext(), R.xml.mypreferences, false);
}
// ========== MY CUSTOM LIBRARY =============//
//button find
public Button fvb(int id) {
return (Button) actv1.findViewById(id);
}
//message show
public void msg(String text) {
Toast.makeText(actv1.getApplicationContext(), text, Toast.LENGTH_LONG).show();
}
public View.OnClickListener optionsListener2 = new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent i = new Intent(actv1.getBaseContext(), com.__MyDefaultLibrary.__MyDefaultPreferencesInit1.class);
actv1.startActivity(i);
}
};
}
And AndroidManifest.xml:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.oceanesa.samplevideorecorder"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="16"
android:targetSdkVersion="19" />
<uses-permission android:name="android.permission.WRITE_INTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera.autofocus" />
<uses-feature
android:name="android.hardware.camera.front"
android:required="false" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:screenOrientation="landscape"
android:theme="#style/AppTheme"
>
<activity
android:name="com.oceanesa.samplevideorecorder.VideoCaptureExample"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.__MyDefaultLibrary.__MyDefaultPreferencesInit1"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN_ACTIVITY" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>
</manifest>
Update Answer just passing context to class
public class MyClass {
private static Context mContext;
private static Activity mActivity;
public MyClass(Context c) {
mContext= c;
}
public MyClass(Activity act) {
mActivity= act;
}
public static void showToastMethod() {
// then passing context or activity to
Toast.makeText(mContext, "mymessage ", Toast.LENGTH_SHORT).show();
// or Toast.makeText(mActivity, "mymessage ", Toast.LENGTH_SHORT).show();
}
}
Finally I got it working with the help of topic: How to display a Toast message in from a class that doesn't extend Activity
Problem was in my code. There was no need to call andorid.app at all. I didnt pass Activity to my external file, from where I couldnt call anything..
I had to pass activity like this (from main project file):
public MyExternalClass myEx = new MyExternalClass(Activity);
and needed some modifications...
Related
I have an application in android and phonegap and I'm using Parse to send pushs.
Everything works fine when I install it: I can send and receive notifications.
After 5 hours, it starts to delay the pushs and after one day, it stops and I cant receive it anymore.
I see the notifications in dashboard but not in device.
Can someone give me a sugestion ?
Manifest.xml:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.meeto1"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="21" />
<supports-screens
android:largeScreens="true"
android:normalScreens="true"
android:smallScreens="true"
android:resizeable="true"
android:anyDensity="true" />
<uses-permission android:name="android.permission.VIBRATE" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.RECEIVE_SMS" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.WRITE_CONTACTS" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION"/>
<uses-permission android:name="android.permission.WAKE_LOCK"/>
<application
android:name="com.example.meeto1.ParseApplication"
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.example.meeto1.MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:name="com.parse.PushService" />
<receiver android:name="com.example.meeto1.PushReceiver"
android:exported="false">
<intent-filter>
<action android:name="com.parse.push.intent.RECEIVE" />
<action android:name="com.parse.push.intent.DELETE" />
<action android:name="com.parse.push.intent.OPEN" />
</intent-filter>
</receiver>
<receiver android:name="com.parse.ParseBroadcastReceiver" >
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<action android:name="android.intent.action.USER_PRESENT" />
</intent-filter>
</receiver>
<meta-data android:name="com.parse.push.notification_icon"
android:resource="#drawable/ic_launcher"/>
</application>
</manifest>
PushReceiver.java:
package com.example.meeto1;
import org.json.JSONException;
import org.json.JSONObject;
import com.parse.ParsePushBroadcastReceiver;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;
public class PushReceiver extends ParsePushBroadcastReceiver {
#Override
public void onPushOpen(Context context, Intent intent) {
Log.e("Push", "Clicked2");
Bundle extras = intent.getExtras();
String message = extras != null ? extras.getString("com.parse.Data") : "";
JSONObject jObject;
try {
jObject = new JSONObject(message);
for (int i=0; i < 10; i++)
{
Toast toast = Toast.makeText(context, jObject.getString("alert"), Toast.LENGTH_LONG);
toast.show();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
#Override
protected Class<? extends Activity> getActivity(Context context, Intent intent) {
Log.v("Parse", "getActivity called");
return super.getActivity(context, intent);
}
#Override
protected void onPushReceive(Context context, Intent intent) {
Log.v("Parse", "onPushReceive called");
super.onPushReceive(context, intent);
}
#Override
public void onReceive(Context context, Intent intent) {
Log.v("Parse", "onReceive Called");
super.onReceive(context, intent);
}
}
MainActivity.java:
package com.example.meeto1;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import org.apache.cordova.DroidGap;
import android.content.Context;
import android.location.Address;
import android.location.Geocoder;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;
import com.parse.Parse;
import com.parse.ParseAnalytics;
import com.parse.ParseInstallation;
import com.parse.ParsePush;
public class MainActivity extends DroidGap {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
super.loadUrl("file:///android_asset/www/index.html");
this.appView.addJavascriptInterface(new MainActivity(), "Android");
this.appView.addJavascriptInterface(new MeusMetodos(), "MeusMetodos");
this.appView.getSettings().setJavaScriptEnabled(true);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
#Override
public void onStop() {
Log.w(TAG, "App stopped");
super.onStop();
}
#Override
public void onDestroy() {
Log.w(TAG, "App destoryed");
super.onDestroy();
}
}
ParseApplication.java
package com.example.meeto1;
import com.parse.Parse;
import com.parse.ParseInstallation;
import com.parse.ParsePush;
import com.parse.PushService;
import android.app.Application;
public class ParseApplication extends Application {
#Override
public void onCreate() {
super.onCreate();
Parse.initialize(this, "xxx", "xxx");
ParsePush.subscribeInBackground("todosUsuarios");
ParseInstallation.getCurrentInstallation().saveInBackground();
}
}
Just to let you know I solved it.
In my Manifest,inside <application>, I'm using the GCM Parse support and my notifications are working now:
<receiver android:name="com.parse.GcmBroadcastReceiver"
android:permission="com.google.android.c2dm.permission.SEND">
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
<action android:name="com.google.android.c2dm.intent.REGISTRATION" />
<category android:name="com.example.meeto1" />
</intent-filter>
below codes are IntentService , BoradCastReceiver , MainAcitivity, Menifest
Actually When the app is started IntentService is called from MainActivity
When called from MainActivity, it works fine.
But When called from BroadCastReceiver, it seems not called.
Please tell me what i should do to solve it.
Menifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.location"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="16"
android:targetSdkVersion="19" />
<uses-feature
android:glEsVersion="0x00020000"
android:required="true" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.example.location.MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service
android:name=".backgraound.LocationBackGround"
android:exported="true" />
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="AIzaSyA_49-k8bdNVqMJkMTtl3hU97No3poJBzs" />
<meta-data
android:name="com.google.android.gms.version"
android:value="#integer/google_play_services_version" />
<uses-library
android:name="com.google.android.maps"
android:required="true" />
<receiver
android:name=".backgraound.AlarmReceiver"
android:enabled="true" >
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" >
</action>
</intent-filter>
</receiver>
<receiver
android:name=".backgraound.startBackGround"
android:enabled="true" >
</receiver>
</application>
</manifest>
BroadCastReceiver
package com.example.location.backgraound;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import android.widget.Toast;
public class startBackGround extends BroadcastReceiver{
#Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
Toast. makeText( context , "startBackGround", Toast.LENGTH_SHORT ).show();
Intent mServiceIntent = new Intent(context, LocationBackGround.class);
context.startService(mServiceIntent);
}
}
IntentService
package com.example.location.backgraound;
import java.util.Iterator;
import java.util.List;
import android.app.IntentService;
import android.content.Context;
import android.content.Intent;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.location.LocationProvider;
import android.media.AudioManager;
import android.os.Bundle;
import android.os.IBinder;
import android.util.Log;
import android.widget.Toast;
import com.example.location.db.MySQLiteHelper;
import com.example.location.meta.LocationNState;
public class LocationBackGround extends IntentService {
private MySQLiteHelper db = null;
private List<LocationNState> locationNStates = null;
private Context context = null;
private LocationManager mLocMan = null;
private Location currentLocation = null;
private AudioManager mAudioManager = null;
public LocationBackGround() {
super("LocationBackGround");
// TODO Auto-generated constructor stub
}
#Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
}
#Override
protected void onHandleIntent(Intent intent) {
// TODO Auto-generated method stub
context = getBaseContext();
Toast.makeText( context , "intentService start : LocationBackGround", Toast.LENGTH_SHORT ).show();
db = new MySQLiteHelper(context);
locationNStates = db.getAllLocationNStates();
mLocMan = (LocationManager)context.getSystemService(Context.LOCATION_SERVICE);
mAudioManager = (AudioManager)context.getSystemService(Context.AUDIO_SERVICE);
requestLocation();
}
}
When i boot up then i could see a Taost showing "StartBackGround".
But i cannot see "intentService start : LocationBackGround" Toast
is there any problem with my code?
Please teach me...
your code looks good. I use a very similar code with my service after booting the device. The difference in my project is that I call a Service - not an IntentService.
Maybe this will help you: http://code.tutsplus.com/tutorials/android-fundamentals-intentservice-basics--mobile-6183
I have embedded Google Maps V2 in my App, as the Google Tutorial says.
I get the following errors, when switching to the map fragment.
03-08 12:52:01.600: E/AndroidRuntime(30314): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2105)
03-08 12:52:01.600: E/AndroidRuntime(30314): FATAL EXCEPTION: main
03-08 12:52:01.600: E/AndroidRuntime(30314): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{de.arvidg.exampleactionbartabs/de.arvidg.exampleactionbartabs.StartActivity}:
java.lang.ClassNotFoundException: de.arvidg.exampleactionbartabs.StartActivity
Heres the source code
package de.arvidg.exampleactionbartabs;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapFragment;
import com.google.android.maps.MapActivity;
import data.Device;
import data.Mission;
import de.arvidg.exampleactionbartabs.R;
import logic.FetchData;
import android.app.Fragment;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
public class MapFrag extends MapFragment {
protected FetchData thread;
protected Device device;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
final View lView = inflater.inflate(R.layout.map, container,
false);
return lView;
}
public void setDumb() {
}
public Device getDevice() {
return device;
}
public void setDevice(Device device) {
this.device = device;
}
}
<?xml version="1.0" encoding="utf-8"?>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/map"
android:layout_width="match_parent"
android:layout_height="match_parent"
class="com.google.android.gms.maps.SupportMapFragment"/>
My Manifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="de.arvidg.exampleactionbartabs"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="14" />
<permission
android:name="de.arvidg.exampleactionbartabs.permission.MAPS_RECEIVE"
android:protectionLevel="signature" />
<uses-feature
android:glEsVersion="0x00020000"
android:required="true" />
<uses-permission android:name="de.arvidg.exampleactionbartabs.permission.MAPS_RECEIVE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name" >
<activity
android:name=".StartActivity"
android:label="#string/app_name"
android:theme="#android:style/Theme.Holo" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".MapFrag"
android:label="Map"
android:theme="#android:style/Theme.Holo" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="removed" />
<uses-library android:name="com.google.android.maps" />
</application>
</manifest>
change
android:name="com.google.android.gms.maps.MapFragment"/>
to
android:name="com.google.android.gms.maps.SupportMapFragment"/> in activity_main.xml
and change
public class MainActivity extends Activity
to
public class MainActivity extends FragmentActivity in MainActivity.java
these two fixes worked for me.
This is the code from my MainActivity:
package com.simple.flashlight;
import android.os.Bundle;
import android.app.Activity;
import android.graphics.Camera;
import android.hardware.Camera.Parameters;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
public class Main extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main_menue);
Button turnOnButtOn = (Button) findViewById (R.id.button1);
Button turnOnButtOff = (Button) findViewById (R.id.button2);
Camera mCam = Camera.open(); //here is an error
Parameters p = mCam.getParameters(); //here is an error
turnOnButtOn.setOnClickListener(new Button.OnClickListener(){
public void onClick(View cameraButton){
//Turn ON
}
});
turnOnButtOff.setOnClickListener(new Button.OnClickListener(){
public void onClick(View cameraButton){
//Turn OFF
}
});
}
}
and this what I have in the manifest file:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.simple.flashlight"
android:versionCode="1"
android:versionName="1.0" >
<uses-permission android:name="android.permission.CAMERA" />
<uses-feature android:name="android.hardware.camera" />
<permission
android:name="android.permission.FLASHLIGHT"
android:permissionGroup="android.permission-group.HARDWARE_CONTROLS"
android:protectionLevel="normal" />
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="15" />
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".Main"
android:label="#string/title_activity_main" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
I am getting errors on Camera mCam = Camera.open(); and Parameters p = mCam.getParameters(); the errors are:
1. the method open() is undefined for type Camera.
2. the method getParameters() is undefined for type Camera.
I'm new to Android development, so maybe I have missed something really stupid,
Thanks in advance!
Delete the import android.graphics.Camera;
It's confusing your calls and does not have an open() method.
Delete import android.graphics.Camera; and when importing, import 'Camera'(android.hardware) instead of 'Camera'(android.graphics).
I am building an Android app that uses wifi.
I have properly declared these uses permissions in the manifest, however for some reason the app is throwing a SecurityException that causes the app to force-close.
I traced the cause of the security exception in LogCat to the system saying it doesn't have the access_wifi_state permission. This is strange and confusing to me because I have already declared it in the manifest.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="android.wifi"
android:versionCode="1"
android:versionName="1.0" >
<uses-permission android:name="ACCESS_WIFI_STATE" />
<uses-permission android:name="CHANGE_WIFI_STATE" />
<uses-feature android:name="android.hardware.wifi" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-sdk android:minSdkVersion="8" />
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name" >
<activity
android:name="android.wifi.AndroidWiFiActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
And here is the code that causes the exception:
package android.wifi;
import android.app.Activity;
import android.content.Context;
import android.net.wifi.WifiManager;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.widget.Button;
import android.widget.TextView;
import android.wifi.R;
public class AndroidWiFiActivity extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
TextView tv = (TextView) findViewById(R.id.textbox);
tv.setText("ABC 123");
WifiManager wifiMgr = (WifiManager) getSystemService(Context.WIFI_SERVICE);
if(wifiMgr.isWifiEnabled())
{
tv.append("Wifi is enabled");
}
else
{
tv.append("Wifi is disabled");
}
}
}
Any help is greatly appreciated. Thanks.
The permission is:
android.permission.ACCESS_WIFI_STATE