該篇文章是說明在Android手機或平板電腦中如何實現截取當前屏幕的功能,並把截取的屏幕保存到SDCard中的某個目錄文件夾下面。實現的代碼如下:
- /**
- * 獲取和保存當前屏幕的截圖
- */
- private void GetandSaveCurrentImage()
- {
- //1.構建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.獲取屏幕
- 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();
- }
- }
-
- /**
- * 獲取SDCard的目錄路徑功能
- * @return
- */
- private String getSDCardPath(){
- File sdcardDir = null;
- //判斷SDCard是否存在
- boolean sdcardExist = Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED);
- if(sdcardExist){
- sdcardDir = Environment.getExternalStorageDirectory();
- }
- return sdcardDir.toString();
- }
由於要對SDCard進行操作,所以別忘記了在manifest.xml文件中賦以對SDCard的讀寫權限:
- <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>