android截屏,截取當前View

最近要搞截屏的相關功能，就在網上查閱了一些資料，最後發現了一個不錯的，然後自己修改了一下，供大家學習。

截取當前view的截圖保存至SDCard的/mcc/currentImage/目錄下,圖片的名字以時間命名

先來看看效果圖：

截取的只是當前的View，不能截取狀態欄，估計想全部截取的話 要root權限。

XML：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="${packageName}.${activityClass}" 
    android:background="#FFFFFF"
    android:orientation="vertical">
    
    <Button
        android:id="@+id/button01"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="截取當前屏幕"
        />

    <TextView
        android:id="@+id/textview"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="100.0dip"
        android:text="當前屏幕"
        android:textSize="20.0sp"
        android:textColor="#FFFF0000"
        android:gravity="center"
        android:layout_gravity="center_horizontal" />

</LinearLayout>

JAVA文件：

import java.io.File;
import java.io.FileOutputStream;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

import android.app.Activity;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.os.Environment;
import android.view.Display;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends Activity {
	private Button button01;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        this.requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.activity_main);
        
        initView();
        
        button01.setOnClickListener(new View.OnClickListener() {
			
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				button01.setVisibility(Button.GONE);//截圖開始時隱藏按鈕
				getAndSaveCurrentImage();
				button01.setVisibility(Button.VISIBLE);//截圖結束時顯示按鈕
			}
		});
    }
    
    //初始化組件
    public void initView(){
    	button01 = (Button)this.findViewById(R.id.button01);
    }
    
    //截取當前屏幕的圖像並保存至SDCard特定目錄下
    public void getAndSaveCurrentImage(){
    	WindowManager windowManager = this.getWindowManager();
    	Display display = windowManager.getDefaultDisplay();
    	int w = display.getWidth();
    	int h = display.getHeight();
    	Bitmap bitmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
    	View decorView = this.getWindow().getDecorView();
    	decorView.setDrawingCacheEnabled(true);
    	bitmap = decorView.getDrawingCache();
    	String savePath = getSDCardPath() + "/mcc/currentImage/";
    	
    	try{
    		File path = new File(savePath);
    		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd_HH_mm_ss", Locale.US);
    		String imagePath = savePath + sdf.format(new Date()) + ".png";
    		File file = new File(imagePath);
    		if(!path.exists()){
    			path.mkdirs();
    		}
    		if(!file.exists()){
    			file.createNewFile();
    		}
    		FileOutputStream fos = null;
    		fos = new FileOutputStream(file);
    		if(null != fos){
    			bitmap.compress(Bitmap.CompressFormat.PNG, 90, fos);
    			fos.flush();
    			fos.close();
    			Toast.makeText(this, "截屏文件已保存至SDCard/mcc/currentImage/下",  
                Toast.LENGTH_LONG).show(); 
    		}
    	}catch(Exception e){
    		e.printStackTrace();
    	}
    }
    
    //得到SDCard根目錄
    public String getSDCardPath(){
		File sdCardDir = null;
		if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){
			sdCardDir = Environment.getExternalStorageDirectory();
		}
		
    	return sdCardDir.toString();
    	
    }
}

源碼下載地址： http://download.csdn.net/detail/akazhuk/8215859