由于位图 Uri 错误，解决 Uri 失败

Question

我是 Android 开发新手。

请帮助我解决以下问题。当我尝试使用该函数更新小部件时，我在 Logcat 上收到错误“system.out - resolveuri failed on bad bitmap uri”，

 remoteViews.setImageViewUri(R.id.clockview, buildUpdate("CURRENTTIME", c));    
    awm.updateAppWidget(awID, remoteViews);

我正在附加我的代码：-

    public Uri buildUpdate(String time, Context context) {


        date = new Date();
        sec = (float) date.getSeconds();
        min = (float) date.getMinutes();
        hour = (float) date.getHours() + min / 60.0f;
        bitmap = Bitmap.createBitmap(200, 200, Config.ARGB_8888);
        Canvas canvas = new Canvas(bitmap);
        Paint p = new Paint();
        p.setAntiAlias(true);
        p.setColor(0xFFFF0000);
        p.setStrokeWidth(2);
        canvas.drawLine(
                x,
                y,
                (float) (x + (r - 15)
                        * Math.cos(Math
                                .toRadians((hour / 12.0f * 360.0f) - 90f))),
                (float) (y + (r - 10)
                        * Math.sin(Math
                                .toRadians((hour / 12.0f * 360.0f) - 90f))), p);
...
...
 OutputStream outStream = null;
        File file = new File("data/clockbitmap.PNG");
    try {
        outStream = new FileOutputStream(file);
        bitmap.compress(Bitmap.CompressFormat.PNG, 100, outStream);
        outStream.flush();
        outStream.close();
     }
     catch(Exception e)
       {}
       uri = Uri.parse(file.getAbsolutePath());

        Log.d("File","filename "+file);
        Log.d("here", "Does this exist? " + String.valueOf
                (file.exists()));
        Log.d("here",uri.getPath());
    return uri;

}

请帮助我解决此问题。！！！！！ :(

Answer 1

当您从 SD 卡读取文件时，路径可以指定为“file:///（绝对路径。）”

我觉得这将解决 URI 解析问题。