实现屏幕截图的代码-Android

转自：http://www.eoeandroid.com/thread-95111-1-1.html

今天实现了下屏幕截图 但是方法不是很优雅 还请大牛给予指点

界面很简单:

<?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"
    android:id="@+id/rootLayout"
    >
<TextView  
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="@string/hello"
    />
<Button

android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="save"
    android:id="@+id/btn"
/>
</LinearLayout>

界面视图:


下面是代码:

package com.babeeta.drawview;

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

import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Bitmap.Config;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.widget.Button;

public class Main extends Activity {
    /** Called when the activity is first created. */

        Button btn;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        btn = (Button) findViewById(R.id.btn);
        btn.setOnClickListener(new Button.OnClickListener() {

                        @Override
                        public void onClick(View v) {
                                // TODO Auto-generated method stub
                                Context context = getApplicationContext();
                                View rootView = findViewById(R.id.rootLayout);

                                Bitmap newb = Bitmap.createBitmap( 320, 480, Config.ARGB_8888 );

                                Canvas canvas = new Canvas(newb);

                                rootView.draw(canvas);

                                File file = new File(Environment.getExternalStorageDirectory()+ "/" + "1.png");

                                FileOutputStream f = null;
                                try {
                                        f = new FileOutputStream(file);
                                } catch (FileNotFoundException e) {
                                        // TODO Auto-generated catch block
                                        e.printStackTrace();
                                }
                                boolean b = newb.compress(Bitmap.CompressFormat.PNG, 100, f);

                                if(b){
                                        //截图成功

                                }
                        }
                });
    }
}

成功后保存到SD卡中 效果如下: