仿QQ等的酷炫的视频背景登录页或者引导页

看到QQ的登录页比较酷炫，于是自己在网上学习着，做了个类似的，实际上很简单。接下来附上代码吧，一遍以后自己要用到。

1.在res目录下建个目录raw,该目录下把视频放进去。

2.新建个Java 类：

package com.pactera.madp.videobc.views;

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

/**
 * Created by Monica on 2017/11/29.
 */

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 defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }


    @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);
    }
}

3.接下来是Activity文件：

package com.pactera.madp.videobc;

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

import com.pactera.madp.videobc.views.CustomVideoView;

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.guide_1));
        //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;
        }
    }
}

就是这么简单。
4。xml文件如下：

<?xml version="1.0" encoding="utf-8"?>
<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"
    tools:context="com.pactera.madp.videobc.MainActivity">

            <com.pactera.madp.videobc.views.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>

5.就这样就完成了哦。