Android-不拍摄当前屏幕的截图

Android-不拍摄当前屏幕的截图,android,Android,对于第一个截图,代码可以正常工作,并且无论移动到另一个视图,都可以继续截取相同的截图 如何获取当前屏幕截图 public void saveBitmap(Bitmap bitmap) { File imagePath = new File(Environment.getExternalStorageDirectory() + "/" + new SimpleDateFormat("yyyyMMddhhmmss'.jpg'").format(new Date()) ); File

对于第一个截图,代码可以正常工作,并且无论移动到另一个视图,都可以继续截取相同的截图

如何获取当前屏幕截图

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;
    } 
}
在这里:


调用
rootView.setDrawingCacheEnabled(false)拍摄屏幕截图后。关闭它,然后再次打开,将强制它正确更新

public Bitmap takeScreenshot() {
   View rootView = findViewById(android.R.id.content).getRootView();
   rootView.setDrawingCacheEnabled(true);
   Bitmap bitmap = rootView.getDrawingCache();
   rootView.setDrawingCacheEnabled(false);
   return bitmap;
}

我曾经尝试捕获当前的
活动
,然后共享屏幕截图。下面是我做的,如果你还感兴趣的话看看,我想你会同意的

首先,获取当前
活动的根视图

View rootView = getWindow().getDecorView().findViewById(android.R.id.content);

第二个,从根视图获取位图

public static Bitmap getScreenShot(View view) {
    View screenView = view.getRootView();
    screenView.setDrawingCacheEnabled(true);
    Bitmap bitmap = Bitmap.createBitmap(screenView.getDrawingCache());
    screenView.setDrawingCacheEnabled(false);
    return bitmap;
}
第三个,将
位图
存储到
SD卡中

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();
    }
}
最后
,共享屏幕截图文件:

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"));
}

Post takeScreenshot()方法。已发布@rajatmehraTry getWindow().getDecorView().getRootView()而不是findViewById(android.R.id.content)。getRootView()。如果返回main并返回此活动,则可以正常工作。上面的代码截图,但在第一次单击后,无论更改如何,它的重复都会给出相同的截图。
public static Bitmap getScreenShot(View view) {
    View screenView = view.getRootView();
    screenView.setDrawingCacheEnabled(true);
    Bitmap bitmap = Bitmap.createBitmap(screenView.getDrawingCache());
    screenView.setDrawingCacheEnabled(false);
    return bitmap;
}
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();
    }
}
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"));
}