android窗口截屏

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package com.example.capture;

import java.io.File;
import java.io.FileOutputStream;

import android.os.Bundle;
import android.os.Handler;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.Point;
import android.graphics.Rect;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.view.Window;
import android.widget.Toast;

public class MainActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
	}
	 public void onClick_CaptureScreen(View view){
		 new Handler().postDelayed(new Runnable() {
			
			@Override
			public void run() {
				// TODO Auto-generated method stub
				View v = getWindow().getDecorView();
				v.setDrawingCacheEnabled(true);
				v.buildDrawingCache();
				Bitmap srcBitmap = v.getDrawingCache();
				
				Rect frame = new Rect();
				getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);
				int statusBarHeight = frame.top;
				
				Point outSize = new Point();
				getWindowManager().getDefaultDisplay().getSize(outSize);
				int width = outSize.x;
				int height = outSize.y;
				
				Bitmap bitmap = Bitmap.createBitmap(srcBitmap, 0, statusBarHeight, width, height - statusBarHeight);
				v.destroyDrawingCache();
				
				FileOutputStream fos = null;
				try{
					File file = File.createTempFile("capture", ".jpg",new File("/sdcard"));
					fos = new FileOutputStream(file);
					if(null != fos){
						bitmap.compress(Bitmap.CompressFormat.PNG, 90, fos);
						fos.flush();
						Toast.makeText(MainActivity.this, "已成功截屏,截屏文件名为:" + file.getName(), Toast.LENGTH_LONG).show();
					}
					fos.close();
				}catch(Exception e){
					e.printStackTrace();
					Toast.makeText(MainActivity.this, "截图失败", Toast.LENGTH_LONG).show();
				}
				
			}
		}, 2000);
	 }
	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}

}

布局文件

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:onClick="onClick_CaptureScreen"
        android:text="屏幕截图(保存到SD卡根目录)" />

    <ImageView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:src="@drawable/wp" />

</LinearLayout>

配置文件

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.capture"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="14"
        android:targetSdkVersion="18" />
	<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.example.capture.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

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