VideoView 实现引导页播放视频欢迎效果

CustomVideoView

package com.lgl.mp4index;

import android.content.Context;
import android.media.MediaPlayer;
import android.util.AttributeSet;
import android.view.KeyEvent;
import android.widget.VideoView;

/**
 * 视频播放,主要是因为手机的大小很多，不能保证原生的VideoView能实现全屏
 * Created by lgl on 16/2/18.
 */
public class CustomVideoView extends VideoView {

    public CustomVideoView(Context context) {
        super(context);
    }

    public CustomVideoView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public CustomVideoView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        //我们重新计算高度
        int width = getDefaultSize(0, widthMeasureSpec);
        int height = getDefaultSize(0, heightMeasureSpec);
        setMeasuredDimension(width, height);
    }

    @Override
    public void setOnPreparedListener(MediaPlayer.OnPreparedListener l) {
        super.setOnPreparedListener(l);
    }

    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        return super.onKeyDown(keyCode, event);
    }
}

activity_main.xml

<RelativeLayout 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">

    <com.lgl.mp4index.CustomVideoView
        android:id="@+id/videoview"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <Button
        android:id="@+id/btn_start"
        android:layout_width="100dp"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:layout_marginBottom="56dp"
        android:text="进入" />
RelativeLayout>

MainActivity

package com.lgl.mp4index;

import android.media.MediaPlayer;
import android.net.Uri;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity implements View.OnClickListener{

    private CustomVideoView videoview;
    private Button btn_start;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        initView();
    }

    /**
     * 初始化
     */
    private void initView() {
        btn_start = (Button) findViewById(R.id.btn_start);
        btn_start.setOnClickListener(this);

        videoview = (CustomVideoView) findViewById(R.id.videoview);
        //设置播放加载路径
        videoview.setVideoURI(Uri.parse("android.resource://"+getPackageName()+"/"+R.raw.media));
        //播放
        videoview.start();
        //循环播放
        videoview.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
            @Override
            public void onCompletion(MediaPlayer mediaPlayer) {
                videoview.start();
            }
        });

    }

    @Override
    public void onClick(View view) {
        switch (view.getId()){
            case R.id.btn_start:
                Toast.makeText(this,"进入了主页",Toast.LENGTH_SHORT).show();
            break;
        }
    }
}