Radio Button风格以编程方式

Question

我想在一个片段中创建一些dinamically的单选按钮,我只有样式问题.如果我将radiobutton代码放在​​xml文件中,则会正确应用默认样式,但是当我通过函数创建radiobutton时,我会看到不同的样式!

XML

<RadioGroup
            android:id="@+id/radiogroup"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:orientation="vertical"
            android:animationCache="false">

            <RadioButton
                android:text="RadioButton 1"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:id="@+id/radioButton3" />

            <RadioButton
                android:text="RadioButton 2"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:id="@+id/radioButton4" />


</RadioGroup>

结果

JAVA CODE

此代码放在片段中的onCreateView中

public void addRadioButton(Context ctx,int num){

    RadioGroup radioGroup= (RadioGroup) alertInflatedView.findViewById(R.id.radiogroup);

    for (int i = 1; i <= num; i++) {
        RadioButton radioButton  = new RadioButton(ctx);
        radioButton.setId(1+i);
        radioButton.setText("Radio " + radioButton.getId());
        radioButton.setTextColor(getResources().getColor(R.color.black));

        radioGroup.addView(radioButton);

    }

}

结果

正如你所看到的单选按钮有不同的风格,有人可以帮助我,如果可能的话,以编程方式应用默认样式？

Answer 1

你必须在drawable或style.xml上创建样式,作为你的要求.

绘制/ null_selector.xml

  <?xml version="1.0" encoding="utf-8"?> 
  <selector xmlns:android="http://schemas.android.com/apk/res/android" > 
         <item android:drawable="@android:color/transparent" /> 
  </selector> 

设置每个按钮以使用它(并使文本居中)像这样(R.drawable.null_selector是选择器XML):

现在,在您的Activity中,您必须实现这样的样式.

  RadioButton radioButton = new RadioButton(ctx);
  radioButton.setText(Integer.toString(i));
  radioButton.setGravity(Gravity.CENTER); 
  radioButton.setButtonDrawable(R.drawable.null_selector); 

我想,这将有助于您在radiobutton中实现自定义样式.

Answer 2

感谢Dharma，我按照您的建议做了一些更改，然后我解决了！

JAVA代码

public void addRadioButton(Context ctx,int num){

    RadioGroup radioGroup= (RadioGroup) alertInflatedView.findViewById(R.id.radiogroup);
    RadioGroup.LayoutParams layoutParams = new RadioGroup.LayoutParams(
            RadioGroup.LayoutParams.MATCH_PARENT,
            RadioGroup.LayoutParams.WRAP_CONTENT);

    for(int i=0; i<num; i++){

        RadioButton radioButton  = new RadioButton(ctx);
        radioButton.setId(1+i);
        radioButton.setText("Radio"+i);
        radioButton.setTextSize(16);
        radioButton.setTextColor(getResources().getColor(R.color.black));
        radioButton.setButtonDrawable(R.drawable.radio_button_selector);
        radioButton.setPadding(80,0,0,0);
        radioButton.setGravity(Gravity.CENTER_VERTICAL);
        radioButton.setLayoutParams(layoutParams);
        radioGroup.addView(radioButton);

    }

}

具有选中和未选中按钮图像的XML RADIO BUTTON SELECTOR

<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:state_checked="false" android:drawable="@drawable/unchekedradiobutton" />
<item android:state_checked="true" android:drawable="@drawable/checkedradiobutton" />
<item android:drawable="@drawable/unchekedradiobutton" /> <!-- default -->

Answer 3

使用 Inflater 实例来膨胀自定义布局并轻松获得自定义 Radiobutton

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private RadioButton createCustomRadioButton(Context context){\n    LayoutInflater inflater = LayoutInflater.from(context);\n    View v = inflater.inflate(R.layout.radio_button,null);\n    RadioButton radioButton  = (RadioButton) v.findViewById(R.id.radio_button);\n    radioButton.setText("It Works!");\n\n    ((ViewGroup)radioButton.getParent()).removeView(radioButton);\n    return radioButton;\n}\n

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radio_button.xml

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<RadioButton\n    android:id="@+id/radio_button"\n    style="@style/radio"\n    android:background="@drawable/style_line" />\n

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样式.xml

\n\n

<style name="radio">\n    <item name="android:layout_width">match_parent</item>\n    <item name="android:layout_height">wrap_content</item>\n    <item name="android:layout_marginLeft">30dp</item>\n    <item name="android:layout_marginRight">30dp</item>\n    <item name="android:layout_marginTop">10dp</item>\n    <item name="android:layout_marginBottom">10dp</item>\n    <item name="android:padding">10dp</item>\n    <item name="android:drawablePadding">5dp</item>\n    <item name="android:textColor">@color/whiteColor</item>\n    <item name="android:textColorHint">@color/hintColor</item>\n    <item name="android:editTextColor">@color/whiteColor</item>\n</style>\n

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作者：乌比拉贾拉 (M\xc3\xa9xico)

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