Develop Reference

Android how to open a specific director in Gallery

My app takes a photo and saves in under Gallery/MyAppname/. I just want to open the My app's directory which is under Gallery. I just want to view all the pictures.
I want to see all the photos as same as Gallery app. Plese check the screenshot:-

You can use a MediaScannerConnectionClient implementation
package com.data.pictures;
import java.io.File;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.media.MediaScannerConnection;
import android.media.MediaScannerConnection.MediaScannerConnectionClient;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class Pictures extends Activity {
String SCAN_PATH;
File[] allFiles ;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_browse_picture);
File folder = new File(Environment.getExternalStorageDirectory().getPath()+"/test/");
allFiles = folder.listFiles();
((Button) findViewById(R.id.button1))
.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
new SingleMediaScanner(Pictures.this, allFiles[0]);
}
});
}
public class SingleMediaScanner implements MediaScannerConnectionClient {
private MediaScannerConnection mMs;
private File mFile;
public SingleMediaScanner(Context context, File f) {
mFile = f;
mMs = new MediaScannerConnection(context, this);
mMs.connect();
}
public void onMediaScannerConnected() {
mMs.scanFile(mFile.getAbsolutePath(), null);
}
public void onScanCompleted(String path, Uri uri) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(uri);
startActivity(intent);
mMs.disconnect();
}
}
}
For updated question i would suggest use this link to understand Link

Following code opens the specific directory at Gallary. This code works fine for both older and new Android devices. I tested up to Android 6.
public static void openGallery(Context context) {
String bucketId = "";
final String[] projection = new String[] {"DISTINCT " + MediaStore.Images.Media.BUCKET_DISPLAY_NAME + ", " + MediaStore.Images.Media.BUCKET_ID};
final Cursor cur = context.getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, projection, null, null, null);
while (cur != null && cur.moveToNext()) {
final String bucketName = cur.getString((cur.getColumnIndex(MediaStore.Images.ImageColumns.BUCKET_DISPLAY_NAME)));
if (bucketName.equals("Your_dir_name")) {
bucketId = cur.getString((cur.getColumnIndex(MediaStore.Images.ImageColumns.BUCKET_ID)));
break;
}
}
Uri mediaUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
if (bucketId.length() > 0) {
mediaUri = mediaUri.buildUpon()
.authority("media")
.appendQueryParameter("bucketId", bucketId)
.build();
}
if(cur != null){
cur.close();
}
Intent intent = new Intent(Intent.ACTION_VIEW, mediaUri);
context.startActivity(intent);
}

How to save Array of phone number into SharedPreference

I want to save phone number using SharedPreference . As it has been fetched from phone book and set in textView i am unable to save every one of them in SharedPreference. Please help me towards how to save and retrive set of phone number(array or set) via SharedPreference and send it to another fragment for messaging the number.
Contact.java
package com.kamal.sos10;
import android.content.ContentResolver;
import android.content.Context;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.net.Uri;
import android.nfc.Tag;
import android.provider.ContactsContract;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.content.Intent;
import android.widget.TextView;
import android.widget.Toast;
import java.lang.reflect.Array;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
public class Contact extends AppCompatActivity {
EditText msg,editText2,editText3,editText4;
Button con1,con2,con3;
TextView textView3,textView5,textView6,textView7,textView8,textView9;
TextView text1;
// static final int PICK_CONTACT = 1;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_contact);
msg=(EditText)findViewById(R.id.msg);
// editText2=(EditText)findViewById(R.id.editText2);
textView3=(TextView)findViewById(R.id.textView3);
// text1=(TextView)findViewById(R.id.first);
textView5=(TextView)findViewById(R.id.textView5);
textView6=(TextView)findViewById(R.id.textView6);
textView7=(TextView)findViewById(R.id.textView7);
textView8=(TextView)findViewById(R.id.textView8);
textView9=(TextView)findViewById(R.id.textView9);
con1=(Button)findViewById(R.id.con1);
con2=(Button)findViewById(R.id.con2);
con3=(Button)findViewById(R.id.con3);
con1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent(Intent.ACTION_PICK);
intent.putExtra("extra_text1", "1");
intent.setType(ContactsContract.Contacts.CONTENT_TYPE);
if (intent.resolveActivity(Contact.this.getPackageManager()) != null) {
startActivityForResult(intent, 1);
}
}
});
con2.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent(Intent.ACTION_PICK);
intent.putExtra("extra_text2", "2");
intent.setType(ContactsContract.Contacts.CONTENT_TYPE);
if (intent.resolveActivity(Contact.this.getPackageManager()) != null) {
startActivityForResult(intent,2);
}
}
});
con3.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent(Intent.ACTION_PICK);
intent.putExtra("extra_text3", "3");
intent.setType(ContactsContract.Contacts.CONTENT_TYPE);
if (intent.resolveActivity(Contact.this.getPackageManager()) != null) {
startActivityForResult(intent, 3);
}
}
});
int num = Integer.valueOf(textView3.getText().toString());
int num2 = Integer.valueOf(textView6.getText().toString());
int num3 = Integer.valueOf(textView7.getText().toString());
Integer[] array=new Integer[3];
array[0]=num;
array[1]=num;
array[2]=num;
for (int j=0;j<3;j++)
{
Log.i("key", String.valueOf(array[j]));
}
/*
SharedPreferences sharedPreferences=this.getSharedPreferences("com.kamal.sos10", Context.MODE_PRIVATE);
SharedPreferences.Editor edit = sharedPreferences.edit();
edit.putInt("array_size", strings.length);
for(int i=0;i<strings.length; i++)
edit.putString("array_" + i, strings[i]);
edit.commit();
int size = sharedPreferences.getInt("array_size", 0);
strings = new String[size];
for(int i=0; i<size; i++) {
strings[i]= sharedPreferences.getString("array_" + i, null);
Log.i("sdert",strings[i]);
}
*/
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == 1 || requestCode == 2 || requestCode == 3) {
if (resultCode == this.RESULT_OK) {
contactPicked(data,requestCode);
}
}
}
private void contactPicked(Intent data,int req) {
ContentResolver cr = this.getContentResolver();
Cursor cur = cr.query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);
cur.moveToFirst();
try {
// getData() method will have the Content Uri of the selected contact
Uri uri = data.getData();
//Query the content uri
cur = this.getContentResolver().query(uri, null, null, null, null);
cur.moveToFirst();
// column index of the contact ID
String id = cur.getString(cur.getColumnIndex(ContactsContract.Contacts._ID));
// column index of the contact name
String name = cur.getString(cur.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
// column index of the phone number
Cursor pCur = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,
ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?",
new String[]{id}, null);
while (pCur.moveToNext()) {
String phone = pCur.getString(
pCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER)).replaceAll(" ", "");
String text1 = getIntent().getStringExtra("extra_text1");
Toast.makeText(Contact.this, text1, Toast.LENGTH_SHORT).show();
if (req==1)
{
textView3.setText(phone);
Toast.makeText(Contact.this, textView3.getText(), Toast.LENGTH_SHORT).show();
int num = Integer.valueOf(textView3.getText().toString());
Log.i("yut", String.valueOf(num));
textView5.setText(name);
}
if (req==2)
{
textView6.setText(phone);
textView8.setText(name);
}
if (req==3)
{
textView7.setText(phone);
textView9.setText(name);
}
pCur.close();
}
}
catch (Exception e) {
e.printStackTrace();
}
}
}

You can save ArrayList/Array/List to SharedPrefernces Here is How you can do it
//Retrieve the values
Set<String> set = myScores.getStringSet("key", null);
//Set the values
Set<String> set = new HashSet<String>();
set.addAll(listOfExistingScores);
scoreEditor.putStringSet("key", set);
scoreEditor.commit();
but You an refer this link for details and this link . these Are useful and easy to understand.
For your second part To Send the Data to Fragment
Well I would suggest to save the data in the current Activity/Fragment what ever you have and then get the data from shared preferences in the fragment you wish to open but in case if you really want to get the data and to send the data to the fragment consider this link please.
Note:
By Looking at your code I think there could be large amount of contacts, so it means that you will have a large array. I will suggest you to store them in database as you can easily retrieve/update/delete any data and record.
Update : (after getting clear in comments )
You have written the code to get the contacts from the Textview in On create where as I think the contacts in textviews gets update later where as that code in the onCreate run before it.
make this change
con3.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
//Just check it here
int num = Integer.valueOf(textView3.getText().toString());
int num2 = Integer.valueOf(textView6.getText().toString());
int num3 = Integer.valueOf(textView7.getText().toString());
Integer[] array=new Integer[3];
array[0]=num;
array[1]=num;
array[2]=num;
for (int j=0;j<3;j++)
{
Log.i("key", String.valueOf(array[j]));
}
}
});

after api level 11 Set will be stored in preferences so convert your Array or List to set and stored in preferences
Set<String> setNameYouWantToStore = new HashSet<String>();
setNameYouWantToStore.addAll(listOfDetails);
scoreEditor.putStringSet("keyForSet", setNameYouWantToStore);
scoreEditor.commit();
For Retriving using Iterator
Set<String> setNameYouWantToStore = new HashSet<String>();
Iterator iterator = setNameYouWantToStore.iterator();
while(iterator.hasNext()) {
System.out.println("Value: " + iterator.next() + " ");
}

Android: Unable to return number from startActivityForResult

I am trying to write an app that has two buttons - the first brings up a list of contacts and the second sends a message to the selected contact. I am able to select a contact using startActivityForResult and onActivityResult, but I cannot return the contact's number to my main code where it would be read by the second button's onClick method. When running the code below, I get the toast message with the phone number but when I try to send a message I get the "Please select a contact first" message. I don't know how to make the "phoneNumber" variable in onActivityResult to send it to "phoneNumber" in my main activity. Thanks!
package com.example.testa;
import android.app.Activity;
import android.app.PendingIntent;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.provider.ContactsContract.CommonDataKinds.Phone;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
public class AndroidAlarmService extends Activity {
private PendingIntent pendingIntent;
private static final int PICK_CONTACT_REQUEST = 0;
private static final Uri CONTACTS_CONTENT_URI = ContactsContract.Contacts.CONTENT_URI;
static String phoneNumber = "";
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
final Button contacts_button = (Button) findViewById(R.id.getContacts);
contacts_button.setOnClickListener(new Button.OnClickListener() {
#Override
public void onClick(View v) {
try {
Intent intent = new Intent(Intent.ACTION_PICK, CONTACTS_CONTENT_URI);
intent.setType(Phone.CONTENT_TYPE);
startActivityForResult(intent, PICK_CONTACT_REQUEST);
} catch (Exception e) {
Log.e("AAS", "Found an error in contacts button");
}
}
});
final Button send_button = (Button) findViewById(R.id.send_button);
send_button.setOnClickListener(new Button.OnClickListener(){
#Override
public void onClick(View arg0) {
final String yourtext = "my message";
Intent myIntent = new Intent(AndroidAlarmService.this, MyAlarmService.class);
if (phoneNumber == ""){
Toast.makeText(AndroidAlarmService.this, "Please select a contact first" , Toast.LENGTH_SHORT).show();
//This is the message I get
return;
}
myIntent.putExtra("phoneNumber", phoneNumber);
myIntent.putExtra("yourtext", yourtext);
pendingIntent = PendingIntent.getService(AndroidAlarmService.this, 0, myIntent, 0);
}});
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (data != null) {
Uri uri = data.getData();
if (uri != null) {
Cursor c = null;
try {
c = getContentResolver().query(uri, new String[]{
ContactsContract.CommonDataKinds.Phone.NUMBER,
ContactsContract.CommonDataKinds.Phone.TYPE },
null, null, null);
if (c != null && c.moveToFirst()) {
String number = c.getString(0);
int type = c.getInt(1);
showSelectedNumber(type, number);
}
} finally {
if (c != null) {
c.close();
}
}
}
}
}
public void showSelectedNumber(int type, String number) {
Toast.makeText(this, type + ": " + number, Toast.LENGTH_LONG).show();
//this part is working
}
}

Change
String number = c.getString(0);
to
phoneNumber = c.getString(0);
This will store the phone number in the member variable rather than in a local variable. Now you can use this phoneNumber member variable in the click listener for your second button.
Note that phoneNumber == "" is an error. You should use equals() to compare String instances for equality.

how to close contact list after pick (android)

**im trying to do n sms app and im using this code to pick some data from contact my
probleam is when im closing my app the contact list is still opend.. how can i close it?
is there any way to pick the data and force close the contact list activity?
**
import java.util.ArrayList;
import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class MainActivity extends Activity implements OnTouchListener{
TextView a1,a2;
EditText contact,message;
Button send;
String name,phoneNumber;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initilaize();
}
public void initilaize(){
a1 = (TextView)findViewById(R.id.tVContact);
a2 = (TextView)findViewById(R.id.tVMessage);
contact = (EditText)findViewById(R.id.eTContact);
message = (EditText)findViewById(R.id.eTMessage);
send = (Button)findViewById(R.id.button1);
name ="";
phoneNumber="";
contact.setOnTouchListener(this);
}
public void onActivityResult(int reqCode, int resultCode, Intent data) {
super.onActivityResult(reqCode, resultCode, data);
if (resultCode == Activity.RESULT_OK) {
if (data != null) {
Uri contactData = data.getData();
try {
String id = contactData.getLastPathSegment();
Cursor phoneCur = getContentResolver()
.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
null,
ContactsContract.CommonDataKinds.Phone.CONTACT_ID
+ " = ?", new String[] { id },
null);
final ArrayList<String> phonesList = new ArrayList<String>();
while (phoneCur.moveToNext()) {
// This would allow you get several phone addresses
// if the phone addresses were stored in an array
String phone = phoneCur
.getString(phoneCur
.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DATA));
phonesList.add(phone);
}
phoneCur.close();
//
String name="";
Cursor c = managedQuery(contactData, null, null, null, null);
if (c.moveToFirst()) {
name = c.getString(c.getColumnIndexOrThrow(ContactsContract.Contacts.DISPLAY_NAME));
}
c.close();
//
if (phonesList.size() == 0) {
} else{
phoneNumber = phonesList.get(0);
this.name = name;
contact.setText(name);
} } catch (Exception e) {
Log.e("FILES", "Failed to get phone data", e);
}
}
}
}
public boolean onTouch1(View v, MotionEvent arg1) {
switch(v.getId()){
case R.id.eTContact:{
Intent intent = new Intent(Intent.ACTION_PICK);
intent.setType(ContactsContract.Contacts.CONTENT_TYPE);
startActivityForResult(intent,0);
break;
}
case R.id.button1:{
}
}
return true;
}
public boolean onTouch(View arg0, MotionEvent arg1) {
// TODO Auto-generated method stub
return false;
}
}

How to display contact name while dialing the call in android programmatically

I can't display the contact name while dialing a call in Android.
Here is my code:
String callTo = "9999900000";
String callername="xxx";
Intent callIntent = new Intent(Intent.ACTION_CALL);
callIntent.setData(Uri.parse("tel:"+ callTo));
String srvname=Context.TELEPHONY_SERVICE;
TelephonyManager tm=(TelephonyManager)getSystemService(srvname);
startActivity(callIntent);

For that you need to create a broadcast receiver and in OnReceive method check an OUTGOING CALL state and then get caller number from that and then create another method to check whether the contact exists in you mobile or not for that pass that contact number in the method.
Below is the code for Caller name broadcastReceiver
package com.example.user.caller;
import android.content.BroadcastReceiver;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.telephony.TelephonyManager;
import android.widget.Toast;
/**
* Created by Vinod Dirishala on 11/27/2016.
*/
public class MyReceiver extends BroadcastReceiver {
String phoneNumber;
String name;
#Override
public void onReceive(Context context, Intent intent) {
String action=intent.getAction();
Bundle extras=intent.getExtras();
if(action.equals("android.intent.action.PHONE_STATE")){
String state=extras.getString(TelephonyManager.EXTRA_STATE);
if(state.equals(TelephonyManager.EXTRA_STATE_RINGING)){
String incomingnumber=extras.getString(TelephonyManager.EXTRA_INCOMING_NUMBER);
String msg = "";
// String person = getCname(context,msg);
String names = getContactDisplayNameByNumber(incomingnumber,context);
// Toast.makeText(context,"Caller Name"+person,Toast.LENGTH_SHORT).show();
displayToast(context,"phone is ringing"+incomingnumber+ "calling you mr."+names);
Intent intent1 = new Intent(context,
MainActivity.class);
intent.putExtra("contactname", names); //<<< put sms text
context.startActivity(intent);
// displayToast(context,"phone is ringing"+person);
// displayToast(context,"Vinod your phone is ringing"+contacname);
}else if(state.equals(TelephonyManager.EXTRA_STATE_IDLE)){
Toast.makeText(context,"phone in idle",Toast.LENGTH_SHORT).show();
}else if(state.equals(TelephonyManager.EXTRA_STATE_OFFHOOK)){
Toast.makeText(context,"phone in offhook",Toast.LENGTH_SHORT).show();
}
}else if(action.equals("android.provider.Telephony.SMS_RECEIVED")){
displayToast(context,"SMS Recived");
}
}
private void displayToast(Context context,String msg){
Toast.makeText(context,msg,Toast.LENGTH_LONG).show();
}
public String getCname(Context context,String name)
{
ContentResolver cr=context.getContentResolver();
Cursor phones = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,null,null, null);
while (phones.moveToNext())
{
name = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
phoneNumber = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
System.out.println(" Phone Nuber.................."+phoneNumber);
// aa.add(name);
// aa.add(phoneNumber);
}
return name;
}
public String getContactDisplayNameByNumber(String number,Context context) {
Uri uri = Uri.withAppendedPath(ContactsContract.PhoneLookup.CONTENT_FILTER_URI, Uri.encode(number));
name = "Incoming call from";
ContentResolver contentResolver = context.getContentResolver();
Cursor contactLookup = contentResolver.query(uri, null, null, null, null);
try {
if (contactLookup != null && contactLookup.getCount() > 0) {
contactLookup.moveToNext();
name = contactLookup.getString(contactLookup.getColumnIndex(ContactsContract.Data.DISPLAY_NAME));
// this.id =
// contactLookup.getString(contactLookup.getColumnIndex(ContactsContract.Data.CONTACT_ID));
// String contactId =
// contactLookup.getString(contactLookup.getColumnIndex(BaseColumns._ID));
}else{
name = "Unknown number";
}
} finally {
if (contactLookup != null) {
contactLookup.close();
}
}
return name;
}
}
to download code visit this link done by Vinod Dirishala