Android：点击TextView从原始资源播放mp3文件

Question

嗨，大家好，我想在点击文字时播放某个mp3文件。例如，我点击了“Nicholas”这个词，应用程序必须播放nicholas.mp3 ...

对不起我的乱码，我是android dev的新手：

package com.example.playword;

import java.io.IOException;

import android.app.Activity;
import android.media.MediaPlayer;
import android.os.Bundle;
//import android.os.Handler;
import android.view.View;
//import android.view.View.OnClickListener;
//import android.widget.Button;
import android.widget.TextView;

public class PlayWord extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        //final Handler mHandler = new Handler();

        final TextView nicholas = (TextView) findViewById(R.id.nicholas);
        final TextView was = (TextView) findViewById(R.id.was);

        nicholas.setText("Nicholas ");
        was.setText("was ");        

        /*
        Button btn = (Button) (findViewById(R.id.nicholasBtn));

        btn.setOnClickListener(new OnClickListener(){
            @Override
            public void onClick(View v) {
                nicholas.setText("Nicholas (Clicked!) ");
            }

          });
        */

        View.OnClickListener handler = new View.OnClickListener(){
            public void onClick(View v) {
                switch (v.getId()) {
                    case R.id.nicholas: // doStuff

                        MediaPlayer mPlayer = MediaPlayer.create(null, R.raw.aaanicholas);

                        try {
                            mPlayer.prepare();
                        } catch (IllegalStateException e) {
                            // TODO Auto-generated catch block
                            e.printStackTrace();
                        } catch (IOException e) {
                            // TODO Auto-generated catch block
                            e.printStackTrace();
                        }

                        mPlayer.start();

                        nicholas.setText("Nicholas (Clicked!) ");
                        break;

                    case R.id.was: // doStuff

                        MediaPlayer mPlayer1 = MediaPlayer.create(null, R.raw.aaawas);

                        try {
                            mPlayer1.prepare();
                        } catch (IllegalStateException e) {
                            // TODO Auto-generated catch block
                            e.printStackTrace();
                        } catch (IOException e) {
                            // TODO Auto-generated catch block
                            e.printStackTrace();
                        }

                        mPlayer1.start();

                        was.setText("was (Clicked!) ");
                        break;
                }
            }
        };

        findViewById(R.id.nicholas).setOnClickListener(handler);
        findViewById(R.id.was).setOnClickListener(handler);

    }
}

当我运行这个时，我会收到一个强制关闭错误..你对此有更好的想法吗？提前谢谢了！

Answer 1

您需要将上下文实例传入MediaPlayer.create方法：

MediaPlayer mPlayer = MediaPlayer.create(PlayWorld.this, R.raw.aaanicholas);

此外，在create()调用之后，prepare已经执行，因此您不需要显式执行它，只需在start()之后调用create()。

Answer 2

当你创建mPlayer对象时，你应该传递Context，在你的情况下是PlayWord.this。

Answer 3

MediaPlayer mPlayer = MediaPlayer.create(FakeCallScreen.this, R.raw.mysoundfile);
    mPlayer.start();