Android中截取当前屏幕的功能

超、凢脫俗 2022-06-13 02:00 166阅读 0赞

原文地址：[http://blog.csdn.net/cjjky/article/details/7281746][http_blog.csdn.net_cjjky_article_details_7281746]

该篇文章是说明在Android手机或平板电脑中如何实现截取当前屏幕的功能，并把截取的屏幕保存到SDCard中的某个目录文件夹下面。实现的代码如下：

/**
    	 * 获取和保存当前屏幕的截图
    	 */
    	private void GetandSaveCurrentImage()  
    	{  
    	    //1.构建Bitmap  
    	    WindowManager windowManager = getWindowManager();  
    	    Display display = windowManager.getDefaultDisplay();  
    	    int w = display.getWidth();  
    	    int h = display.getHeight();  
    	      
    	    Bitmap Bmp = Bitmap.createBitmap( w, h, Config.ARGB_8888 );      
    	      
    	    //2.获取屏幕  
    	    View decorview = this.getWindow().getDecorView();   
    	    decorview.setDrawingCacheEnabled(true);   
    	    Bmp = decorview.getDrawingCache();   
    	    
    	    String SavePath = getSDCardPath()+"/AndyDemo/ScreenImage";
    	  
    	    //3.保存Bitmap   
    	    try {  
    	        File path = new File(SavePath);  
    	        //文件  
    	        String filepath = SavePath + "/Screen_1.png";  
    	        File file = new File(filepath);  
    	        if(!path.exists()){  
    	            path.mkdirs();  
    	        }  
    	        if (!file.exists()) {  
    	            file.createNewFile();  
    	        }  
    	          
    	        FileOutputStream fos = null;  
    	        fos = new FileOutputStream(file);  
    	        if (null != fos) {  
    	            Bmp.compress(Bitmap.CompressFormat.PNG, 90, fos);  
    	            fos.flush();  
    	            fos.close();    
    	              
    	            Toast.makeText(mContext, "截屏文件已保存至SDCard/AndyDemo/ScreenImage/下", Toast.LENGTH_LONG).show();  
    	        }  
    	  
    	    } catch (Exception e) {  
    	        e.printStackTrace();  
    	    }  
    	}  
    	
        /**
         * 获取SDCard的目录路径功能
         * @return
         */
    	private String getSDCardPath(){
    		File sdcardDir = null;
    		//判断SDCard是否存在
    		boolean sdcardExist = Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED);
    		if(sdcardExist){
    			sdcardDir = Environment.getExternalStorageDirectory();
    		}
    		return sdcardDir.toString();
    	}

由于要对SDCard进行操作，所以别忘记了在manifest.xml文件中赋以对SDCard的读写权限：

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

[http_blog.csdn.net_cjjky_article_details_7281746]: http://blog.csdn.net/cjjky/article/details/7281746