Android 一种样式的一次充气,可多次使用
我想给一件物品充气一次,然后循环使用。我目前有一个解决方案,但很可能有更好的方法。此外,除非有Android 一种样式的一次充气,可多次使用,android,android-layout,android-styles,Android,Android Layout,Android Styles,我想给一件物品充气一次,然后循环使用。我目前有一个解决方案,但很可能有更好的方法。此外,除非有view.removeView调用,否则程序不会运行,这是有道理的,但如果我以后想在应用程序中添加catBtn,则似乎很危险) 现行守则: LinearLayout col1 = (LinearLayout)findViewById(R.id.col1); for(int i = 0; i < 10; ++i) { LinearLayout assets = (LinearLayout)t
view.removeView
调用,否则程序不会运行,这是有道理的,但如果我以后想在应用程序中添加catBtn
,则似乎很危险)
现行守则:
LinearLayout col1 = (LinearLayout)findViewById(R.id.col1);
for(int i = 0; i < 10; ++i) {
LinearLayout assets = (LinearLayout)this.getLayoutInflater().inflate(R.layout.assets, null);
Button btn = (Button)assets.findViewById(R.id.catBtn);//new Button(this);
assets.removeView(btn);
col1.addView(btn);
}
LinearLayout col1=(LinearLayout)findViewById(R.id.col1);
对于(int i=0;i<10;++i){
LinearLayout assets=(LinearLayout)this.getLayoutInflater().inflate(R.layout.assets,null);
按钮btn=(按钮)资产。findViewById(R.id.catBtn);//新建按钮(此);
资产移除视图(btn);
col1.addView(btn);
}
现有资产
您可以将false作为最后一个参数传递给充气方法
LayoutInflator.from(context).inflate(res, parent, false);
这会导致膨胀视图不附着任何内容。这样你就不必移除任何东西。这就解决了assets.removeView()问题。但我认为这仍然可能是浪费
看起来您只需要一些按钮:
<Button android:id="@+id/catBtn"
android:layout_height="wrap_content"
android:background="@drawable/selectable"
android:text="Cat Button"
android:layout_width="120dip"
android:textSize="16dip">
让我们将其提取为一种样式:
<resources>
<declare-stylable android:name="awesome_button">
<attr android:name="awesomeButtonStyle" android:type="reference"/>
</declare-stylable>
<style android:name="AwesomeButton">
<item android:name="android:layout_height">wrap_content</item>
<item android:name="android:background">@drawable/selectable</item>
<item android:name="android:layout_width">120dp</item>
<item android:name="android:text">Cat Button</item>
<item android:name="android:textSize">16sp</item>
</style>
<style android:name="Theme.WithAwesomeButtons" parent="@android:style/Theme">
<item android:name="awesomeButtonStyle">@style/AwesomeButton</item>
</style>
<resources>
包装内容
@可拉伸/可选择
120dp
猫按钮
16便士
@风格/魅力按钮
好了,现在我们开始时尚了;)(对不起,我无法抗拒)。现在,让我们在AndroidManifest.xml中配置您的活动:
<activity android:name=".MyCatBtnActivity"
... Whatever else is in your activity
android:theme="@style/Theme.WithAwesomeButtons"/>
现在在您的循环中确定:
for (int i=0; i<10; i++) {
// Let's get rid of the LayoutInflator (unless you want to use an xml layout
// in which case, make awesomeButton.xml and have it just have a button in it
// with attribute style="?awesomeButtonStyle").
Button button = new Button(this, null, R.attr.awesome_button.awesomeButtonStyle));
// Let's tag them with the integer counter so we can id them later
// You can set id, but there is a slight chance it will not be unique
// within the hierarchy. Later on you can either use col1.getChildView(index) to scan
// and look for these tags (or store them in a local array if col1 holds a lot of views)
// Then you can also evaluate the tag whenever you are referring to a button from
// within an OnClickListener or any View listener for that matter.
button.setTag(Integer.valueOf(i));
col1.add(button);
}
for(int i=0;i)您的示例不是开箱即用的,但让我有了一个良好的开端。我发布了一个链接,在接下来的过程中(作为编辑),但既然你的帖子90%都在那里,我说你得到了好评。不仅如此,你在答案中加入了一些实时性,我真的很感激你的长度,所以这肯定是a+1。谢谢!谢谢!很抱歉,我没有编译它或任何东西,所以我认为会有一些错误。很高兴你走完剩下的路:)
for (int i=0; i<10; i++) {
// Let's get rid of the LayoutInflator (unless you want to use an xml layout
// in which case, make awesomeButton.xml and have it just have a button in it
// with attribute style="?awesomeButtonStyle").
Button button = new Button(this, null, R.attr.awesome_button.awesomeButtonStyle));
// Let's tag them with the integer counter so we can id them later
// You can set id, but there is a slight chance it will not be unique
// within the hierarchy. Later on you can either use col1.getChildView(index) to scan
// and look for these tags (or store them in a local array if col1 holds a lot of views)
// Then you can also evaluate the tag whenever you are referring to a button from
// within an OnClickListener or any View listener for that matter.
button.setTag(Integer.valueOf(i));
col1.add(button);
}