前言
欢迎大家我分享和推荐好用的代码段~~
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正文
package xiaosi.location;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
public class LocationActivity extends Activity {
/** Called when the activity is first created. */
private ImageView img = null;
private Button button = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
img = (ImageView)findViewById(R.id.image);
button = (Button)findViewById(R.id.button);
button.setOnClickListener(new buttonListener());
}
public class buttonListener implements OnClickListener{
public void onClick(View v)
{
int[] location = new int[2];
img.getLocationOnScreen(location);
int x = location[0];
int y = location[1];
System.out.println("x:"+x+"y:"+y);
System.out.println("Left:"+img.getLeft());
System.out.println("Right:"+img.getRight());
System.out.println("Top:"+img.getTop());
System.out.println("Bottom:"+img.getBottom());
}
}
}
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<Button
android:id="@+id/button"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="button"/>
<ImageView
android:id="@+id/image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:src="@drawable/a" />
</LinearLayout>
getLocationOnScreen
getLocationInWindow
getLeft
如果在Activity的OnCreate()事件输出那些参数,是全为0,要等UI控件都加载完了才能获取到这些。