通过远程视窗设置GradientDrawable [英] Setting GradientDrawable through RemoteView
问题描述
这是我想做的事：我有一个小窗口，我想设置它的背景，这取决于用户选择的颜色。它必须是一个梯度。的backgound是通过设置的LinearLayout的背景来设定。为了测试，我做了一个假，背景为：
remoteViews.setInt（R.id.layout，setBackgroundResource，R.drawable.widget_background）;
我已经看到了这个问题：呼叫setImageDrawable从RemoteViews 的，但我无法理解如何实现。我甚至无法找到 setXYZ（）提到那里。这里是我曾尝试到现在为止：
- 动态制作渐变绘制。在这种方法中，我不能够设置背景东阳AFAIK所有的方法都被拉伸的ID和我有一个可绘制对象。
-
试过的ImageView作为背景（LinearLayout中之前）。它不提供适当的余量小部件。由于该部件的文字是动态的，有时它会出来这不是ImageView的什么，我想
-
制作bg.xml中，我有：
＆LT;形状的xmlns：机器人=http://schemas.android.com/apk/res/android＆GT; ＆LT;填充 机器人：底部=1DP 机器人：左=1DP 机器人：右=1DP 机器人：顶部=1DP/＆GT; ＆LT;角落 机器人：bottomLeftRadius =7DP 机器人：bottomRightRadius =7DP 机器人：topLeftRadius =7DP 机器人：topRightRadius =7DP/＆GT; ＆LT; /形状＆GT;
现在我完全糊涂了，并卡住。有人可以帮（可能更多的code和更少的链接）尽快？另外，请不要关闭这个问题前面已经问
试过的ImageView作为背景（LinearLayout中之前）。它不提供适当的余量小部件。由于该部件的文字是动态的，有时它会出来这不是ImageView的什么，我想
我不完全知道你的意思，但如果你使用的FrameLayout / RelativeLayout的为你的根布局，然后把ImageView的内部，填充母，你的形象应该是完全相同的小部件的大小。
＆LT;的FrameLayout
机器人：layout_width =FILL_PARENT
机器人：layout_height =FILL_PARENT
机器人：layout_margin =6DP＆GT;
＆LT; ImageView的
机器人：ID =@ + ID / widgetBg
机器人：layout_width =FILL_PARENT
机器人：layout_height =FILL_PARENT
机器人：scaleType =fitXY/＆GT;
//其他意见
＆LT; /的FrameLayout＆GT;
此外，这是我在做什么，以动态地改变颜色和放大器;阿尔法的圆角渐变背景。然后使用setImageViewBitmap（）申请到ImageView的。也许有一个更好的办法。
公共静态位图的getBackground（INT BGCOLOR，诠释的宽度，高度INT，上下文语境）{
尝试 {
//转换为HSV，以减轻和变暗
INT阿尔法= Color.alpha（BGCOLOR）;
浮动[] HSV =新的浮动[3];
Color.colorToHSV（BGCOLOR，HSV）;
HSV [2] - = 0.1;
INT较暗= Color.HSVToColor（α，HSV）;
HSV [2] + = 0.3;
INT打火机= Color.HSVToColor（α，HSV）;
//创建渐变useng更轻，较暗的颜色
GradientDrawable GD =新GradientDrawable（
GradientDrawable.Orientation.LEFT_RIGHT，新的INT [] {较深，更轻}）;
gd.setGradientType（GradientDrawable.RECTANGLE）;
//设置角落的大小
gd.setCornerRadii（新浮法[] {4,4,4,4,4,4,4,4}）;
//获取密度扩展位图的设备
浮DP = context.getResources（）getDisplayMetrics（）密度。
//基于宽度和窗口小部件的高度创建位图
点阵位图= Bitmap.createBitmap（Math.round（宽* DP），Math.round（高* DP）
Bitmap.Config.ARGB_8888）;
帆布油画=新的Canvas（位）;
gd.setBounds（0，0，canvas.getWidth（），canvas.getHeight（））;
gd.draw（画布）;
返回的位图;
}赶上（例外五）{
e.printStackTrace（）;
返回null;
}
}
Here is what I want to do: I have a widget and I want to set its background depending upon users choice of colors. It has to be a gradient. The backgound is to be set by setting background of the linearLayout. For testing, I did it for a dummy-background as:
remoteViews.setInt(R.id.layout, "setBackgroundResource", R.drawable.widget_background);
I have seen this question: Call setImageDrawable from RemoteViews but I am not able to understand how to implement. I even can't find setXYZ() as mentioned there. Here is what I have tried until now:
- Making a gradient drawable dynamically. In this approach, I am not able to set the background beacause AFAIK all the methods take id of the drawable and I have a drawable object.
Tried ImageView as a background (before LinearLayout). It does not provide proper margin to widget. Since the widget text is dynamic, sometimes it goes out of the imageView which is not what I want
Making a bg.xml in which I have:
<shape xmlns:android="http://schemas.android.com/apk/res/android" > <padding android:bottom="1dp" android:left="1dp" android:right="1dp" android:top="1dp" /> <corners android:bottomLeftRadius="7dp" android:bottomRightRadius="7dp" android:topLeftRadius="7dp" android:topRightRadius="7dp" /> </shape>
Now I am totally confused and stuck. Can someone help(probably more of code and less of links) ASAP? Also, please don't close this question as already asked.
Tried ImageView as a background (before LinearLayout). It does not provide proper margin to widget. Since the widget text is dynamic, sometimes it goes out of the imageView which is not what I want
I'm not entirely sure what you mean, but if you use a FrameLayout / RelativeLayout for your root layout, and then put the ImageView inside with fill parent, your image should be exactly the size of your widget.
<FrameLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_margin="6dp" >
<ImageView
android:id="@+id/widgetBg"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:scaleType="fitXY" />
// Other views
</FrameLayout>
Also, this is what I'm doing to dynamically change the color & alpha of a rounded corner gradient background. Then use setImageViewBitmap( ) to apply to the imageview. Probably there is a better way.
public static Bitmap getBackground(int bgColor, int width, int height, Context context) {
try {
// convert to HSV to lighten and darken
int alpha = Color.alpha(bgColor);
float[] hsv = new float[3];
Color.colorToHSV(bgColor, hsv);
hsv[2] -= .1;
int darker = Color.HSVToColor(alpha, hsv);
hsv[2] += .3;
int lighter = Color.HSVToColor(alpha, hsv);
// create gradient useng lighter and darker colors
GradientDrawable gd = new GradientDrawable(
GradientDrawable.Orientation.LEFT_RIGHT,new int[] { darker, lighter});
gd.setGradientType(GradientDrawable.RECTANGLE);
// set corner size
gd.setCornerRadii(new float[] {4,4,4,4,4,4,4,4});
// get density to scale bitmap for device
float dp = context.getResources().getDisplayMetrics().density;
// create bitmap based on width and height of widget
Bitmap bitmap = Bitmap.createBitmap(Math.round(width * dp), Math.round(height * dp),
Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
gd.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
gd.draw(canvas);
return bitmap;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
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