联想pad跳转到录音机

工作需要，要使用系统的录音机

方法1

Intent intent = new Intent(MediaStore.Audio.Media.RECORD_SOUND_ACTION);

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
    intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
}
startActivityForResult(intent, 33);

该方法，停止录音后，会跳转到录音列表页面。需求是点击停止录音的按钮，直接返回调用页面，并带回Uri

方法2

Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
                    intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
                }

                intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                intent.setDataAndType(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, "audio/*");
                intent.setPackage("com.lenovo.soundrecorder");

                try {
                    startActivityForResult(intent, 23);
                } catch (Exception e) {
                    CustomToast.showGrayToast(getContext(),"跳转失败");
                }

@Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        FileLogger.getInstance().info("onActivityResult        ", "requestCode :"
                + requestCode + "          DATA:" + getAudioPath(context,data.getData()));
    }

该方式跳转到录音器，能满足需求
另外附录一下 URI转换成绝对地址 的方法

1、适用于URI为如下样式的情况
uri:content://media/external/audio/media/1564

 public  String getAudioPath(Context context, Uri uri) {
        String res = null;
        String[] proj =
                {MediaStore.Audio.Media.DATA};
        Cursor cursor = context.getContentResolver().query(uri, proj, null, null, null);
        if (cursor.moveToFirst()) {
            int column_index = cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.DATA);
            res = cursor.getString(column_index);
        }
        cursor.close();
        return res;
    }

2、如果URI是类似于uri:content://com.android.providers.media.documents/document/audio%3A1546这样的,上边的方法就不能正确获得绝对地址了。可以用如下方法。


    public String getDocMediaPath(Uri uri){
        final String docId = DocumentsContract.getDocumentId(uri);
        final String[] split = docId.split(":");
        final String type = split[0];
        Uri contentUri = null;
        if ("image".equals(type)) {
            contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
        } else if ("video".equals(type)) {
            contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
        } else if ("audio".equals(type)) {
            contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
        }
        final String selection = "_id=?";
        final String[] selectionArgs = new String[]{split[1]};

        return getDataColumn(context, contentUri, selection, selectionArgs);
    }

    private  String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {
        Cursor cursor = null;
        final String column = "_data";
        final String[] projection = {column};
        try {
            cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
            if (cursor != null && cursor.moveToFirst()) {
                final int column_index = cursor.getColumnIndexOrThrow(column);
                return cursor.getString(column_index);
            }
        } finally {
            if (cursor != null)
                cursor.close();
        }
        return null;
    }

参考文档 Android通过URI获取文件路径

最后编辑于：2019.11.14 11:29:48