我正在开发一个单词争夺游戏,允许用户将图像移动到图像..如果图像不匹配,那么它应该回到它拖动它的原始位置.我已经写了一个示例代码来移动它图像,但这里的问题是,如果我移动一个图像,相邻的图像也开始移动..这是示例代码.
/** Touchmoveimage.java*/
package com.examples.Touchmoveimage;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.widget.ImageView;
import android.widget.LinearLayout.LayoutParams;
public class Touchmoveimage extends Activity implements OnTouchListener{
int windowwidth;
int windowheight;
private LayoutParams layoutParams ;
private LayoutParams layoutParams1 ;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
windowwidth = getWindowManager().getDefaultDisplay().getWidth();
windowheight = getWindowManager().getDefaultDisplay().getHeight();
ImageView ball= (ImageView)findViewById(R.id.ball);
ball.setOnTouchListener(this);
ImageView ball1 = (ImageView)findViewById(R.id.ball1);
ball1.setOnTouchListener(this);
}
public boolean onTouch(View v,MotionEvent event) {
switch(v.getId())
{
case R.id.ball:
ImageView ball= (ImageView)findViewById(R.id.ball);
layoutParams = (LayoutParams) ball.getLayoutParams();
switch(event.getAction())
{
case MotionEvent.ACTION_DOWN:
break;
case MotionEvent.ACTION_MOVE:
int x_cord = (int)event.getRawX();
int y_cord = (int)event.getRawY();
if(x_cord>windowwidth){x_cord=windowwidth;}
if(y_cord>windowheight){y_cord=windowheight;}
layoutParams.leftMargin = x_cord -25;
layoutParams.topMargin = y_cord - 75;
ball.setLayoutParams(layoutParams);
break;
default : break;
}
case R.id.ball1:
ImageView ball1= (ImageView)findViewById(R.id.ball1);
layoutParams1 = (LayoutParams) ball1.getLayoutParams();
switch(event.getAction())
{
case MotionEvent.ACTION_DOWN:
break;
case MotionEvent.ACTION_MOVE:
int x_cord = (int)event.getRawX();
int y_cord = (int)event.getRawY();
if(x_cord>windowwidth){x_cord=windowwidth;}
if(y_cord>windowheight){y_cord=windowheight;}
layoutParams1.leftMargin = x_cord -25;
layoutParams1.topMargin = y_cord - 75;
ball1.setLayoutParams(layoutParams1);
break;
default : break;
}
}
return true;}
}
<!-- main.xml -->
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<ImageView
android:layout_width="50sp"
android:layout_height="50sp"
android:id="@+id/ball"
android:src="@drawable/ball">
</ImageView>
<ImageView
android:layout_y="30dip"
android:layout_x="118dip"
android:layout_width="50sp"
android:layout_height="50sp"
android:id="@+id/ball1"
android:src="@drawable/ball1">
</ImageView>
</LinearLayout>
任何人都帮助我.想要解决所有可能的事情……
解决方法
你需要确保事件发生在给定的球中.即使您在图像对象外部触摸,也会声明onTouch事件.因此,您可以做的是检查已阻止的ACTION_DOWN阶段,以确保触摸位于对象的边界内.然后你可以设置一个标志来告诉系统正在移动哪个球.我会让你做编码,但希望这会让你知道该怎么做.
