Android如何截取当前View 为图片

转自：http://dev.10086.cn/cmdn/supesite/?uid-103795-action-viewspace-itemid-6194

import android.app.Activity;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.ImageView;

public class Midlet extends Activity {
Button bn;
ImageView iv,v2;
ImageButton ib;
Bitmap bitmap = Bitmap.createBitmap(100, 200, Bitmap.Config.ARGB_8888);
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
bn = (Button) findViewById(R.id.Button01);
iv = (ImageView) findViewById(R.id.ImageView01);
v2 =(ImageView) findViewById(R.id.ImageView02);
ib=(ImageButton) findViewById(R.id.ImageButton01);
bn.setText("cancan");
ib.setOnClickListener(new View.OnClickListener() {

public void onClick(View v) {
View v1 = v2; //获取单个View
// View v1 = v2.getRootView();//获取整个屏幕显示
v1.setDrawingCacheEnabled(true);
bitmap = v1.getDrawingCache();
if (bitmap != null) {
iv.setImageBitmap(bitmap);
}
else {
iv.setImageResource(R.drawable.icon);
}
} });
}
}
/*************************************************************************************************/
<?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"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
<Button android:text="Button01" android:id="@+id/Button01" android:layout_width="wrap_content" android:layout_height="wrap_content"></Button>

<ImageView android:id="@+id/ImageView02" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/icon" ></ImageView>

<ImageButton android:id="@+id/ImageButton01" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/icon"></ImageButton>
<ImageView android:id="@+id/ImageView01" android:layout_width="wrap_content" android:layout_height="wrap_content"></ImageView>

</LinearLayout>

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