Intent.ACTION_GET_CONTENT to open mp3, play using MediaPlayer, tested on Android 5.1 Lollipop

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Refer to my old exercise of MediaPlayer "Display playing time for MediaPlayer", open mp3 using Intent of "ACTION_GET_CONTENT", then pass the media path, data.getData().getPath(), to mediaPlayer.setDataSource(). But it not work now.

To fix it, modify to pass data.getData() to mediaPlayer.setDataSource().

Tested on Android emulator running 5.5 Lollipop:


MainActivity.java
package com.blogspot.android_er.androidplayer;

import android.content.Intent;
import android.media.MediaPlayer;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.SeekBar;
import android.widget.TextView;
import android.widget.Toast;

import java.io.IOException;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;

public class MainActivity extends AppCompatActivity {

TextView info, state;
Button buttonOpen, buttonOpenNew;
Button buttonPlay, buttonPause, buttonStop;
SeekBar timeLine;
LinearLayout timeFrame;
TextView timePos, timeDur;

final static int RQS_OPEN_AUDIO_MP3 = 1;
final static int RQS_OPEN_AUDIO_MP3_NEW = 2;

MediaPlayer mediaPlayer;
String srcPath = null;

enum MP_State {
Idle, Initialized, Prepared, Started, Paused,
Stopped, PlaybackCompleted, End, Error, Preparing
}

MP_State mediaPlayerState;

//ScheduledExecutorService myScheduledExecutorService;

/**
* Called when the activity is first created.
*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
buttonOpen = (Button) findViewById(R.id.open);
buttonOpen.setOnClickListener(buttonOpenOnClickListener);
buttonOpenNew = (Button) findViewById(R.id.opennew);
buttonOpenNew.setOnClickListener(buttonOpenNewOnClickListener);

info = (TextView) findViewById(R.id.info);
state = (TextView) findViewById(R.id.state);

buttonPlay = (Button) findViewById(R.id.play);
buttonPlay.setOnClickListener(buttonPlayOnClickListener);
buttonPause = (Button) findViewById(R.id.pause);
buttonPause.setOnClickListener(buttonPauseOnClickListener);
buttonStop = (Button) findViewById(R.id.stop);
buttonStop.setOnClickListener(buttonStopOnClickListener);

//
timeLine = (SeekBar) findViewById(R.id.seekbartimeline);
timeFrame = (LinearLayout) findViewById(R.id.timeframe);
timePos = (TextView) findViewById(R.id.pos);
timeDur = (TextView) findViewById(R.id.dur);

ScheduledExecutorService myScheduledExecutorService
= Executors.newScheduledThreadPool(1);

myScheduledExecutorService.scheduleWithFixedDelay(
new Runnable() {
@Override
public void run() {
monitorHandler.sendMessage(monitorHandler.obtainMessage());
}
},
200, //initialDelay
200, //delay
TimeUnit.MILLISECONDS);

}

Handler monitorHandler = new Handler() {

@Override
public void handleMessage(Message msg) {
mediaPlayerMonitor();
}

};

private void mediaPlayerMonitor() {
if (mediaPlayer == null) {
timeLine.setVisibility(View.INVISIBLE);
timeFrame.setVisibility(View.INVISIBLE);
} else {
if (mediaPlayer.isPlaying()) {
timeLine.setVisibility(View.VISIBLE);
timeFrame.setVisibility(View.VISIBLE);

int mediaDuration = mediaPlayer.getDuration();
int mediaPosition = mediaPlayer.getCurrentPosition();
timeLine.setMax(mediaDuration);
timeLine.setProgress(mediaPosition);
timePos.setText(String.valueOf((float) mediaPosition / 1000) + "s");
timeDur.setText(String.valueOf((float) mediaDuration / 1000) + "s");
} else {
timeLine.setVisibility(View.INVISIBLE);
timeFrame.setVisibility(View.INVISIBLE);
}
}
}

MediaPlayer.OnErrorListener mediaPlayerOnErrorListener
= new MediaPlayer.OnErrorListener() {

@Override
public boolean onError(MediaPlayer mp, int what, int extra) {
// TODO Auto-generated method stub

mediaPlayerState = MP_State.Error;
showMediaPlayerState();

return false;
}
};


private void cmdReset() {
if (mediaPlayer == null) {
mediaPlayer = new MediaPlayer();
mediaPlayer.setOnErrorListener(mediaPlayerOnErrorListener);
}
mediaPlayer.reset();
mediaPlayerState = MP_State.Idle;
showMediaPlayerState();
}

private void cmdSetDataSource(Uri uri) {
if (mediaPlayerState == MP_State.Idle) {
try {
mediaPlayer.setDataSource(MainActivity.this, uri);
mediaPlayerState = MP_State.Initialized;
} catch (IllegalArgumentException e) {
Toast.makeText(MainActivity.this,
e.toString(), Toast.LENGTH_LONG).show();
e.printStackTrace();
} catch (IllegalStateException e) {
Toast.makeText(MainActivity.this,
e.toString(), Toast.LENGTH_LONG).show();
e.printStackTrace();
} catch (IOException e) {
Toast.makeText(MainActivity.this,
e.toString(), Toast.LENGTH_LONG).show();
e.printStackTrace();
}
} else {
Toast.makeText(MainActivity.this,
"Invalid State@cmdSetDataSource - skip",
Toast.LENGTH_LONG).show();
}

showMediaPlayerState();
}

private void cmdSetDataSource(String path) {
if (mediaPlayerState == MP_State.Idle) {
try {
mediaPlayer.setDataSource(path);
mediaPlayerState = MP_State.Initialized;
} catch (IllegalArgumentException e) {
Toast.makeText(MainActivity.this,
e.toString(), Toast.LENGTH_LONG).show();
e.printStackTrace();
} catch (IllegalStateException e) {
Toast.makeText(MainActivity.this,
e.toString(), Toast.LENGTH_LONG).show();
e.printStackTrace();
} catch (IOException e) {
Toast.makeText(MainActivity.this,
e.toString(), Toast.LENGTH_LONG).show();
e.printStackTrace();
}
} else {
Toast.makeText(MainActivity.this,
"Invalid State@cmdSetDataSource - skip",
Toast.LENGTH_LONG).show();
}

showMediaPlayerState();
}

private void cmdPrepare() {

if (mediaPlayerState == MP_State.Initialized
|| mediaPlayerState == MP_State.Stopped) {
try {
mediaPlayer.prepare();
mediaPlayerState = MP_State.Prepared;
} catch (IllegalStateException e) {
Toast.makeText(MainActivity.this,
e.toString(), Toast.LENGTH_LONG).show();
e.printStackTrace();
} catch (IOException e) {
Toast.makeText(MainActivity.this,
e.toString(), Toast.LENGTH_LONG).show();
e.printStackTrace();
}
} else {
Toast.makeText(MainActivity.this,
"Invalid State@cmdPrepare() - skip",
Toast.LENGTH_LONG).show();
}

showMediaPlayerState();
}

private void cmdStart() {
if (mediaPlayerState == MP_State.Prepared
|| mediaPlayerState == MP_State.Started
|| mediaPlayerState == MP_State.Paused
|| mediaPlayerState == MP_State.PlaybackCompleted) {
mediaPlayer.start();
mediaPlayerState = MP_State.Started;
} else {
Toast.makeText(MainActivity.this,
"Invalid State@cmdStart() - skip",
Toast.LENGTH_LONG).show();
}

showMediaPlayerState();
}

private void cmdPause() {
if (mediaPlayerState == MP_State.Started
|| mediaPlayerState == MP_State.Paused) {
mediaPlayer.pause();
mediaPlayerState = MP_State.Paused;
} else {
Toast.makeText(MainActivity.this,
"Invalid State@cmdPause() - skip",
Toast.LENGTH_LONG).show();
}
showMediaPlayerState();
}

private void cmdStop() {

if (mediaPlayerState == MP_State.Prepared
|| mediaPlayerState == MP_State.Started
|| mediaPlayerState == MP_State.Stopped
|| mediaPlayerState == MP_State.Paused
|| mediaPlayerState == MP_State.PlaybackCompleted) {
mediaPlayer.stop();
mediaPlayerState = MP_State.Stopped;
} else {
Toast.makeText(MainActivity.this,
"Invalid State@cmdStop() - skip",
Toast.LENGTH_LONG).show();
}
showMediaPlayerState();

}

private void showMediaPlayerState() {

switch (mediaPlayerState) {
case Idle:
state.setText("Idle");
break;
case Initialized:
state.setText("Initialized");
break;
case Prepared:
state.setText("Prepared");
break;
case Started:
state.setText("Started");
break;
case Paused:
state.setText("Paused");
break;
case Stopped:
state.setText("Stopped");
break;
case PlaybackCompleted:
state.setText("PlaybackCompleted");
break;
case End:
state.setText("End");
break;
case Error:
state.setText("Error");
break;
case Preparing:
state.setText("Preparing");
break;
default:
state.setText("Unknown!");
}
}

View.OnClickListener buttonPlayOnClickListener
= new View.OnClickListener() {

@Override
public void onClick(View v) {

if (srcPath == null) {
Toast.makeText(MainActivity.this,
"No file selected",
Toast.LENGTH_LONG).show();
} else {
cmdPrepare();
cmdStart();
}

}

};

View.OnClickListener buttonPauseOnClickListener
= new View.OnClickListener() {

@Override
public void onClick(View v) {
cmdPause();
}

};

View.OnClickListener buttonStopOnClickListener
= new View.OnClickListener() {

@Override
public void onClick(View v) {

cmdStop();

}

};

View.OnClickListener buttonOpenOnClickListener
= new View.OnClickListener() {

@Override
public void onClick(View arg0) {
Intent intent = new Intent();
intent.setType("audio/mp3");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(
intent, "Open Audio (mp3) file"), RQS_OPEN_AUDIO_MP3);

}
};

View.OnClickListener buttonOpenNewOnClickListener
= new View.OnClickListener() {

@Override
public void onClick(View arg0) {
Intent intent = new Intent();
intent.setType("audio/mp3");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(
intent, "Open Audio (mp3) file"), RQS_OPEN_AUDIO_MP3_NEW);

}
};

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
if (requestCode == RQS_OPEN_AUDIO_MP3) {
//work on my old post at that time, but not work now!!!
//http://android-er.blogspot.com/2012/06/display-playing-time-for-mediaplayer.html
Uri audioFileUri = data.getData();

srcPath = audioFileUri.getPath();
info.setText(audioFileUri.toString() + "\n" + srcPath);

cmdReset();
cmdSetDataSource(srcPath);

}else if(requestCode == RQS_OPEN_AUDIO_MP3_NEW){
//New version,
Uri audioFileUri = data.getData();

srcPath = audioFileUri.getPath();
info.setText(audioFileUri.toString() + "\n" + srcPath);

cmdReset();
cmdSetDataSource(audioFileUri);
}

}
}
}


layout/activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:padding="16dp"
tools:context="com.blogspot.android_er.androidplayer.MainActivity">

<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:autoLink="web"
android:text="http://android-er.blogspot.com/"
android:textStyle="bold" />

<Button
android:id="@+id/open"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Open MP3 file" />

<Button
android:id="@+id/opennew"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Open MP3 file (NEW)" />

<TextView
android:id="@+id/info"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />

<Button
android:id="@+id/play"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Play" />

<Button
android:id="@+id/pause"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Pause" />

<Button
android:id="@+id/stop"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Stop" />

<TextView
android:id="@+id/state"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />

<SeekBar
android:id="@+id/seekbartimeline"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:visibility="invisible" />

<LinearLayout
android:id="@+id/timeframe"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:visibility="invisible">

<TextView
android:id="@+id/pos"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />

<TextView
android:id="@+id/dur"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="right" />
</LinearLayout>

</LinearLayout>


uses-permission of "android.permission.READ_EXTERNAL_STORAGE" is needed in AndroidManifest.xml


download filesDownload the files .

Related:
Open mp3 using Intent.ACTION_OPEN_DOCUMENT, ACTION_GET_CONTENT and ACTION_PICK, with checking and requesting permission at runtime.

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