代码适用于第一个屏幕截图,并且无论移动到另一个视图,都可以保持相同的屏幕截图。
如何获取当前截图?
public void saveBitmap(Bitmap bitmap) {
File imagePath = new File(Environment.getExternalStorageDirectory() + "/" + new SimpleDateFormat("yyyyMMddhhmmss'.jpg'").format(new Date()) );
FileOutputStream fos =null;
try {
fos = new FileOutputStream(imagePath);
bitmap.compress(CompressFormat.JPEG, 100, fos);
fos.flush();
fos.close();
} catch (FileNotFoundException e) {
Log.e("GREC", e.getMessage(), e);
} catch (IOException e) {
Log.e("GREC", e.getMessage(), e);
}
}
点击信息:
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.iSave:
Bitmap bitmap = null;
bitmap = takeScreenshot();
saveBitmap(bitmap);
break;
}
}
这里:
public Bitmap takeScreenshot() {
View rootView = findViewById(android.R.id.content).getRootView();
rootView.setDrawingCacheEnabled(true);
return rootView.getDrawingCache();
}
答案 0 :(得分:15)
在拍摄完屏幕后调用rootView.setDrawingCacheEnabled(false);
。将其关闭然后再打开会强制它正确更新。
public Bitmap takeScreenshot() {
View rootView = findViewById(android.R.id.content).getRootView();
rootView.setDrawingCacheEnabled(true);
Bitmap bitmap = rootView.getDrawingCache();
rootView.setDrawingCacheEnabled(false);
return bitmap;
}
答案 1 :(得分:2)
我曾尝试捕获当前的Activity
,然后分享屏幕截图。以下是我的做法,如果你仍然感兴趣,请看看它们,我想你会同意。
首先,获取当前Activity
的根视图:
View rootView = getWindow().getDecorView().findViewById(android.R.id.content);
或
View rootView = findViewById(android.R.id.content);
或
View rootView = findViewById(android.R.id.content).getRootView();
第二次,从根视图中获取Bitmap
:
public static Bitmap getScreenShot(View view) {
View screenView = view.getRootView();
screenView.setDrawingCacheEnabled(true);
Bitmap bitmap = Bitmap.createBitmap(screenView.getDrawingCache());
screenView.setDrawingCacheEnabled(false);
return bitmap;
}
第三次,将Bitmap
存储到SDCard
:
private final static String dir = Environment.getExternalStorageDirectory().getAbsolutePath() + "/Screenshots";
public static void store(Bitmap bm, String fileName){
File dir = new File(dir);
if(!dir.exists())
dir.mkdirs();
File file = new File(dir, fileName);
try {
FileOutputStream fOut = new FileOutputStream(file);
bm.compress(Bitmap.CompressFormat.PNG, 85, fOut);
fOut.flush();
fOut.close();
} catch (Exception e) {
e.printStackTrace();
}
}
At last
,分享屏幕截图文件:
private void shareImage(String file){
Uri uri = Uri.fromFile(file);
Intent intent = new Intent();
intent.setAction(Intent.ACTION_SEND);
intent.setType("image/*");
intent.putExtra(android.content.Intent.EXTRA_SUBJECT, "");
intent.putExtra(android.content.Intent.EXTRA_TEXT, "");
intent.putExtra(Intent.EXTRA_STREAM, uri);
startActivity(Intent.createChooser(intent, "Share Screenshot"));
}