【Android 多媒体应用】使用 VideoView 播放视频

1.MainActivity.java

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.MediaController;
import android.widget.VideoView;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    private VideoView videoView;
    private Button btn_start;
    private Button btn_pause;
    private Button btn_stop;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();
    }

    private void initView() {
        videoView = (VideoView) findViewById(R.id.videoView);
        btn_start = (Button) findViewById(R.id.btn_start);
        btn_pause = (Button) findViewById(R.id.btn_pause);
        btn_stop = (Button) findViewById(R.id.btn_stop);

        btn_start.setOnClickListener(this);
        btn_pause.setOnClickListener(this);
        btn_stop.setOnClickListener(this);

        //根据文件路径播放
        videoView.setVideoPath("/sdcard/TopGirl.mp4");
        videoView.setMediaController(new MediaController(this));
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.btn_start:
                videoView.start();
                break;
            case R.id.btn_pause:
                videoView.pause();
                break;
            case R.id.btn_stop:
                videoView.stopPlayback();
                break;
        }
    }
}

2.activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:padding="5dp">

    <VideoView
        android:id="@+id/videoView"
        android:layout_width="match_parent"
        android:layout_height="300dp" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

        <Button
            android:id="@+id/btn_start"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="开始" />

        <Button
            android:id="@+id/btn_pause"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="暂停 " />

        <Button
            android:id="@+id/btn_stop"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="停止" />
    </LinearLayout>

</LinearLayout>