这是JAVA代码
package com.example.test;
import com.example.test1.R;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.Display;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.widget.ImageView;
public class Main extends Activity implements OnTouchListener{
ImageView[] iv = new ImageView[6];
int[] index = { R.id.imagevb1, R.id.imagevb2, R.id.imagevb3, R.id.imagevb4,
R.id.imagevb5 ,R.id.imagevb6};
int screenWidth, screenHeight;//界面的大小
int lastX, lastY;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
for (int i = 0; i < index.length; i++) {
iv[i] = (ImageView) findViewById(index[i]);
iv[i].setOnTouchListener(this);
}
Display dis = this.getWindowManager().getDefaultDisplay();
screenWidth = dis.getWidth();
screenHeight = dis.getHeight();
}
@Override
public boolean onTouch(View v, MotionEvent event) {
switch (v.getId()) {
case R.id.imagevb1:
get(iv[0], event);
break;
case R.id.imagevb2:
get(iv[1], event);
break;
case R.id.imagevb3:
get(iv[2], event);
break;
case R.id.imagevb4:
get(iv[3], event);
break;
case R.id.imagevb5:
get(iv[4], event);
break;
case R.id.imagevb6:
get(iv[5], event);
break;
}
return false;
}
int a1, a2, a3, a4;
public void get(ImageView v, MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:// 表示用户开始触摸
lastX = (int) event.getRawX();
lastY = (int) event.getRawY();
a1 = v.getLeft();
a2 = v.getTop();
a3 = v.getBottom();
a4 = v.getRight();
break;
case MotionEvent.ACTION_MOVE:// 表示用户在移动(手指或者其他)
int dx = (int) event.getRawX() - lastX;
int dy = (int) event.getRawY() - lastY;
int left = v.getLeft() + dx;
int top = v.getTop() + dy;
int right = v.getRight() + dx;
int bottom = v.getBottom() + dy;
if (left < 0) {
left = 0;
right = left + v.getWidth();
}
if (right > screenWidth) {
right = screenWidth;
left = right - v.getWidth();
}
if (top < 0) {
top = 0;
bottom = top + v.getHeight();
}
if (bottom > screenHeight) {
bottom = screenHeight;
top = bottom - v.getHeight();
}
v.layout(left, top, right, bottom);
lastX = (int) event.getRawX();
lastY = (int) event.getRawY();
break;
case MotionEvent.ACTION_UP:// 表示用户抬起了手指
v.layout(a1, a2, a3, a4);
break;
}
}
}
**这是Xml布局文件**
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/FrameLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent" >
<ImageView
android:id="@+id/imagevb1"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_margin="12dp"
android:layout_marginLeft="146dp"
android:layout_marginTop="30dp"
android:clickable="true"
android:src="@drawable/block0" />
<ImageView
android:id="@+id/imagevb2"
android:layout_width="80dp"
android:layout_height="40dp"
android:layout_alignParentLeft="true"
android:layout_below="@+id/imagevb1"
android:layout_margin="12dp"
android:layout_marginLeft="146dp"
android:layout_marginTop="30dp"
android:clickable="true"
android:src="@drawable/block1" />
<ImageView
android:id="@+id/imagevb3"
android:layout_width="40dp"
android:layout_height="80dp"
android:layout_alignParentLeft="true"
android:layout_below="@+id/imagevb2"
android:layout_margin="12dp"
android:layout_marginLeft="146dp"
android:layout_marginTop="30dp"
android:clickable="true"
android:src="@drawable/block2" />
<ImageView
android:id="@+id/imagevb4"
android:layout_width="80dp"
android:layout_height="80dp"
android:layout_alignParentLeft="true"
android:layout_below="@+id/imagevb3"
android:layout_margin="12dp"
android:layout_marginLeft="146dp"
android:layout_marginTop="30dp"
android:clickable="true"
android:src="@drawable/block3" />
<ImageView
android:id="@+id/imagevb5"
android:layout_width="120dp"
android:layout_height="120dp"
android:layout_alignParentLeft="true"
android:layout_below="@+id/imagevb4"
android:layout_margin="12dp"
android:layout_marginLeft="146dp"
android:layout_marginTop="30dp"
android:clickable="true"
android:src="@drawable/block4" />
<ImageView
android:id="@+id/imagevb6"
android:layout_width="80dp"
android:layout_height="120dp"
android:layout_alignParentLeft="true"
android:layout_below="@+id/imagevb5"
android:layout_margin="12dp"
android:layout_marginLeft="146dp"
android:layout_marginTop="30dp"
android:clickable="true"
android:src="@drawable/block5" />
</RelativeLayout>
</FrameLayout>
问题：我要的效果是我手一松开，我拖拽的控件就回到原来的位置，但是现在只有第一个可以做到松开就回去。其他控件可以拖动但是手一松开就消失了！！没错，消失了！！求大家帮忙看看是那里出错了！！！
