Android开发（14）-- 多线程中实现利用自定义控件绘制小球并完成小球自动下落的功能

1、布局界面

[html]
<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"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".GameActivity" >

<www.csdn.net.tetris.view.GameView
android:id="@+id/gameview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>

</RelativeLayout>
[html]
<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"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".GameActivity" >

    <www.csdn.net.tetris.view.GameView
        android:id="@+id/gameview"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>

    <Button
        android:id="@+id/btn_left"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/gameview"
        android:layout_alignParentBottom="true"
        android:text="@string/btn_text" />

    <Button
        android:id="@+id/btn_right"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBottom="@+id/gameview"
        android:layout_centerHorizontal="true"
        android:layout_alignParentBottom="true"
        android:text="@string/btn_right" />



</RelativeLayout>

    <www.csdn.net.tetris.view.GameView
        android:id="@+id/gameview"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>

</RelativeLayout>

2、封装的一个绘制的图的类

[java]
package www.csdn.net.tetris.domain;

import www.csdn.net.tetris.view.GameView;

public class Block {

private int x=20,y=20;

public GameView gameView;
public Block(GameView gameView){
this.gameView=gameView;
}

//向左移动
public void moveLeft(){
x-=10;
gameView.invalidate();
}

//向右移动
public void moveRight(){
x+=10;
gameView.invalidate();
}

//下落方法
public void downLoad(){
y+=10;
gameView.invalidate();//重新绘制
}

public int getX() {
return x;
}

public void setX(int x) {
this.x = x;
}

public int getY() {
return y;
}

public void setY(int y) {
this.y = y;
}

}
[java]
package www.csdn.net.tetris.domain;

import www.csdn.net.tetris.view.GameView;

public class Block {

private int x=20,y=20;
&nb

补充：移动开发 , Android ,