helper_main.java 文件源码

private static void openFile(Activity activity, File file, String string, View view) {

        Intent intent = new Intent();
        intent.setAction(Intent.ACTION_VIEW);
        intent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
            Uri contentUri = FileProvider.getUriForFile(activity, activity.getApplicationContext().getPackageName() + ".provider", file);
            intent.setDataAndType(contentUri,string);

        } else {
            intent.setDataAndType(Uri.fromFile(file),string);
        }

        try {
            activity.startActivity (intent);
        } catch (ActivityNotFoundException e) {
            Snackbar.make(view, R.string.toast_install_app, Snackbar.LENGTH_LONG).show();
        }
    }