如何把当前活动的截图，然后共享呢？ [英] How to take a screenshot of current Activity and then share it?

问题描述

我需要活动的截图（没有标题栏，用户不应该看到的截图实际上已经采取了），然后通过一个共享操作菜单按钮共享。我已经尝试了一些解决方案，但他们没有为我工作。任何想法？

I need to take a screenshot of Activity (without the title bar, and the user should NOT see that a screenshot has actually been taken) and then share it via an action menu button "share". I have already tried some solutions, but they didn't work for me. Any ideas?

推荐答案

这是我如何捕获屏幕，共享它。如果你有兴趣看看。

This is how I captured the screen and shared it. Take a look if you are interested.

第一，获得当前活动的根视图：

First, get root view from current activity:

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

二，捕捉到根视图：

 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，存储位图进入SD卡：

public static void store(Bitmap bm, String fileName){
    final static String dir = Environment.getExternalStorageDirectory().getAbsolutePath() + "/Screenshots";
    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，分享电流活动的截图：

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"));
}

我希望你能在我codeS的启发。

I hope you will be inspired by my codes.

更新：

添加以下权限到你的的Andr​​oidManifest.xml ：

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

由于它创造和外部存储访问文件。

Because it creates and accesses files in external storage.

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