Question

我想从许多片段布局中使用这个MediaPlayer方法。

如何解析原始资源？

public void playSound(Uri path) throws IOException{
    MediaPlayer player;
    player = new MediaPlayer();
    try {
        player.setDataSource(path.getPath(), path);
    } catch (IOException e) {
        e.printStackTrace(); 
    } catch (IllegalArgumentException e) {
        e.printStackTrace();  
    } catch (SecurityException e) {
        e.printStackTrace();  
    } catch (IllegalStateException e) {
        e.printStackTrace();  
    }
    player.prepare();
    player.start();
    player.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {

        public void onCompletion(MediaPlayer mp){
            mp.release();
        }
    });
}

我目前正在从我的片段中使用它来解析原始目录中的mp3文件。

Btn_shou.setOnClickListener(new View.OnClickListener() {

            public void onClick(View arg0) {

                Uri path = null;

                switch (tone.getCheckedRadioButtonId())
                {
                    case R.id.radioTone1:

                        path = Uri.parse("android.resource://" +getActivity().getApplicationContext().getPackageName() +"/"+R.raw.shou1);
                        try {
                            playSound(path);
                        } catch (IOException e) {
                            e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
                        }
                        break;

'path'变量存在问题。 Android抱怨它无法找到mp3文件。

我终于解决了这个问题：

创建单独的MediaPlayer类。

package com.example.FragmentTabsTutorial;
import android.content.Context;
import android.media.MediaPlayer;
import android.net.Uri;
import java.io.IOException;

public class plaSnd {

public void playSound(Uri path, Context context) throws IOException {

    MediaPlayer player;
    player = new MediaPlayer();
    try {

        player.setDataSource(context, path);
    } catch (IOException e) {
        e.printStackTrace();  
    } catch (IllegalArgumentException e) {
        e.printStackTrace();
    } catch (SecurityException e) {
        e.printStackTrace(); 
    } catch (IllegalStateException e) {
        e.printStackTrace();
}
    player.prepare();
    player.start();

    player.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {

        public void onCompletion(MediaPlayer mp) {
            mp.release();

        }
     });

}

}

2.。）从我的片段中我创建了一个对象到plaSnd（）类：

 final plaSnd pla = new plaSnd();

3.。）创建了一个存储上下文的变量：

final Context context = getActivity().getApplicationContext();

4.。）根据点击的按钮设置我的路径变量，然后在'plaSnd'类中解析'context'和'path'到我的playSound（）方法：

 Btn_o.setOnClickListener(new View.OnClickListener() {

        public void onClick(View arg0) {

            Uri path = null;

            switch (tone.getCheckedRadioButtonId())
            {
                case R.id.radioTone1:

                    path = Uri.parse("android.resource://" +getActivity().getApplicationContext().getPackageName() +"/"+R.raw.o1);

                    try {
                        pla.playSound(path, context);
                    } catch (IOException e) {
                        e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
                    }

                    break;

这对我有用，虽然我确信可能有更好的解决方案......

Answer 1

尝试替换它：

player = new MediaPlayer();

用这个：

// context should be any context, e.g. your activity or getApplicationContext()
player = MediaPlayer.create(context, R.raw.shou1);

正确的背景

1 个答案: