【移动应用开发技术】android如何实现仿QQ动态背景、视频背景

【移动应用开发技术】android如何实现仿QQ动态背景、视频背景

在下给大家分享一下android如何实现仿QQ动态背景、视频背景，相信大部分人都还不怎么了解，因此分享这篇文章给大家参考一下，希望大家阅读完这篇文章后大有收获，下面让我们一起去了解一下吧！效果如下：

如上图类似效果图：1，自定义视频类继承VideoView

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);

}

}MainActivity中：public

class

MainActivity

extends

AppCompatActivity

implements

View.OnClickListener

{

private

CustomVideoView

videoview;

private

Button

btn_enter;

@Override

protected

void

onCreate(Bundle

savedInstanceState)

{

super.onCreate(savedInstanceState);

//

requestWindowFeature(Window.FEATURE_NO_TITLE);

setContentView(R.layout.activity_main);

initView();

}

/**

*

初始化

*/

private

void

initView()

{

btn_enter

=

(Button)

findViewById(R.id.btn_enter);

btn_enter.setOnClickListener(this);

videoview

=

(CustomVideoView)

findViewById(R.id.videoview);

videoview.setVideoURI(Uri.parse("android.resource://"+getPackageName()+"/"+R.raw.shipin2));

//播放

videoview.start();

//循环播放

videoview.setOnCompletionListener(new

MediaPlayer.OnCompletionListener()

{

@Override

public

void

onCompletion(MediaPlayer

mediaPlayer)

{

videoview.start();

mediaPlayer.setOnInfoListener(new

MediaPlayer.OnInfoListener()

{

@Override

public

boolean

onInfo(MediaPlayer

mp,

int

what,

int

extra)

{

return

false;

}

});

}

});

}

@Override

public

void

onClick(View

view)

{

switch

(view.getId()){

case

R.id.btn_enter:

Toast.makeText(this,"登录成功了",Toast.LENGTH_SHORT).show();

break;

}

}

//返回重启加载

@Override

protected

void

onRestart()

{

super.onRestart();

initView();

}

//防止锁屏或者切出的时候，音乐在播放

@Override

protected

void

onStop()

{

super.onStop();

videoview.stopPlayback();

}

}读取视频的问题：把视频放到和res/raw文件夹里面了布局文件中：

<?xml

version="1.0"

encoding="utf-8"?>

<FrameLayout

xmlns:android="/apk/res/android"

xmlns:tools="/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

>

<!--CustomVideoView

自定义视频类的位置-->

<application1.applicationlong.CustomVideoView

android:id="@+id/videoview"

android:layout_width="match_parent"

android:layout_height="match_parent"

/>

<LinearLayout

android:layout_width="match_parent"

android:layout_height="match_parent"

android:gravity="top"

android:orientation="vertical">

<LinearLayout

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_marginLeft="38dp"

android:layout_marginRight="38dp"

android:layout_marginTop="70dp"

android:orientation="vertical">

<EditText

android:id="@+id/et_phone"

android:layout_width="match_parent"

android:layout_height="40dp"

android:layout_gravity="center_vertical"

android:background="@null"

android:digits="0123456789"

android:gravity="center_vertical"

android:hint="请输入手机号"

android:inputType="number"

android:maxLength="11"

android:maxLines="1"

android:paddingLeft="5dp"

android:textColor="@android:color/white"

android:textColorHint="@android:color/white"

android:textSize="18sp"/>

<View

android:layout_width="match_parent"

android:layout_height="1dp"

android:layout_alignParentBottom="true"

android:background="@color/black"/>

<EditText

android:id="@+id/et_pwd"

android:layout_width="match_parent"

android:layout_height="40dp"

android:layout_marginTop="20dp"

android:background="@null"

android:gravity="center_vertical"

android:hint="请输入密码"

android:inputType="textPassword"

android:maxLength="11"

android:maxLines="1"

android:paddingLeft="5dp"

android:textColor="@android:color/white"

android:textColorHint="@android:color/white"

android:textSize="18sp"/>

<View

android:layout_width="match_parent"

android:layout_height="1dp"

android:layout_alignParentBottom="true"

android:background="@color/black"/>

</LinearLayout>

<RelativeLayout

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_marginLeft="23dp"

android:layout_marginRight="23dp"

android:orientation="horizontal">

<TextView

android:id="@+id/tv_register"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:padding="15dp"

android:text="快速注册"

android:textColor="@color/green"/>

<TextView

android:id="@+id/tv_find_pwd"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignParentEnd="true"

android:layout_alignParentRight="true"

android:layout_alignParentTop="true"

android:gravity="right"

android:padding="15dp"

android:text="忘记密码?"

android:textColor="@color/green"/>

</RelativeLayout>

<Button

android:id="@+id/btn_enter"

android:layout_width="match_parent"

android:layout_height="45dp"

android:layout_gravity="center_horizontal"

android:layout_marginLeft="30dp"

android:layout_marginRight="30dp"

android:layout_marginTop="20dp"

android:background="@color/darkseagreen"

android:text="登录"

android:textColor="@color/white"

android:textSize="18dp"/>

</LinearLayout>

<LinearLayout

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_gravity="bottom"

android:paddingBottom="30dp"

android:orientation="vertical">

<TextView

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_marginTop="90dp"

android:gravity="center"

android:text="使用第三方登录"

android:textColor="@color/white"

android:textSize="16dp"

android:visibility="visible"/>

<LinearLayout

android:layout_width="match_parent"

android:la