Android屏幕截图功能

Android手机屏幕截图两种方法:

package com.eastedge;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Bitmap.CompressFormat;
import android.graphics.Bitmap.Config;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.widget.Button;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.Toast;

public class DemoTestActivity extends Activity
{
// 要转化的View
private FrameLayout frameLayout;
Button button;
ImageView imageView;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
frameLayout = (FrameLayout) findViewById(R.id.frameLayout1);
button = (Button) findViewById(R.id.button);
imageView = (ImageView) findViewById(R.id.imageView1);
imageView.setOnTouchListener(new MulitPointTouchListener());
// 使用getDrawingCache()时:下面这句 必须要加的，要不frameLayout.getDrawingCache()取到的为空
//		frameLayout.setDrawingCacheEnabled(true);
button.setOnClickListener(new Button.OnClickListener()
{

@Override
public void onClick(View v)
{
// 取得View的BitMap两种方法
//				Bitmap bm = frameLayout.getDrawingCache();

Bitmap bm = Bitmap.createBitmap(640, 480, Config.ARGB_8888);
Canvas canvas = new Canvas(bm);
frameLayout.draw(canvas);

if (bm != null)
{
imageView.setImageBitmap(bm);
File file = new File(Environment.getExternalStorageDirectory() + File.separator + "1.png");
if (file.exists()) {
try {
file.createNewFile();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
try {
FileOutputStream fos = new FileOutputStream(file);
boolean b = bm.compress(Bitmap.CompressFormat.PNG, 100, fos);
if (b) {
Toast.makeText(DemoTestActivity.this, "截图成功:" + Environment.getExternalStorageDirectory() + File.separator + "1.png", 0).show();
}else {
Toast.makeText(DemoTestActivity.this, "截图失败", 0).show();

}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

}
else
{
Toast.makeText(DemoTestActivity.this, "合成图片失败", 0).show();
}
}
});
}
}