Android7.0 新特性

Posted on 2016-11-07 14:24  小小蜗牛灬  阅读(619)  评论(0编辑  收藏  举报

删除了三个隐式广播  

1.监听网络变化的广播 CONNECTIVITY_ACTION,在Manifest.xml中注册的 不会受到,在前台运行的程序 registerReceiver()注册的广播可以接收到;

2.应用程序无法发送或接收 ACTION_NEW_PICTURE(拍照) 或 ACTION_NEW_VIDEO(录像) 广播。此项优化会影响所有应用,而不仅仅是面向 Android N 的应用;

FileProvider的适配

1.图片裁剪 由接收File Uri变为 Content Uri;

  

public static Uri getImageContentUri(Context context, File imageFile) {
    String filePath = imageFile.getAbsolutePath();
    Cursor cursor = context.getContentResolver().query(
            MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
            new String[] { MediaStore.Images.Media._ID },
            MediaStore.Images.Media.DATA + "=? ",
            new String[] { filePath }, null);

    if (cursor != null && cursor.moveToFirst()) {
        int id = cursor.getInt(cursor
                .getColumnIndex(MediaStore.MediaColumns._ID));
        Uri baseUri = Uri.parse("content://media/external/images/media");
        return Uri.withAppendedPath(baseUri, "" + id);
    } else {
        if (imageFile.exists()) {
            ContentValues values = new ContentValues();
            values.put(MediaStore.Images.Media.DATA, filePath);
            return context.getContentResolver().insert(
                    MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
        } else {
            return null;
        }
    }
}
Intent intent = new Intent("com.android.camera.action.CROP");
intent.setDataAndType(getImageContentUri(context , inputfile), IMAGE_UNSPECIFIED);//自己使用Content Uri替换File Uri
intent.putExtra("crop", "true");
intent.putExtra("aspectX", 1);
intent.putExtra("aspectY", 1);
intent.putExtra("outputX", 180);
intent.putExtra("outputY", 180);
intent.putExtra("scale", true);
intent.putExtra("return-data", false);
intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(outputfile));//定义输出的File Uri
intent.putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString());
intent.putExtra("noFaceDetection", true);
startActivityForResult(intent, RequestCode);

转自:http://www.open-open.com/lib/view/open1474615893731.html  

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