RadioButtonGroup are not showing up
after solving buttons succesfully by you guys now im having a problem that the radiobuttongroup aren't showing up
this is the code
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:android2="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<LinearLayout
android:id="@+id/linearLayout1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:weightSum="10" >
<TextView
android:id="@+id/secondLine"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textSize="20sp"
android:text="@string/Greetings" />
<Button
android:id="@+id/Button1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="HelloWord" />
</LinearLayout>
<LinearLayout
android:id="@+id/linearLayout2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:orientation="horizontal"
android:weightSum="10"
android2:baselineAligned="_baseline" >
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="3.3"
android:background="#ff0000"
android:gravity="center"
android:text="red"
android:textColor="#000000" />
<TextView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="3.4"
android:gravity="center"
android:background="#00ff00"
android:text="green"
android:textColor="#000000"
<TextView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="3.3"
android:gravity="center"
android:background="#0000ff"
android:text="blue"
android:textColor="#000000"
</LinearLayout>
<RadioGroup
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/myRadioGroup"
android:orientation="horizontal">
<RadioButton
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:weight="1"
android:id="@+id/myRadioButtonRed" />
<RadioButton
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:weight="1"
android:id="@+id/myRadioButtonGreen" />
<RadioButton
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:weight="1"
android:id="@+id/myRadioButtonBlue" />
</LinearLayout>
</LinearLayout>
note: im having an error saying this TextView android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_weight="3.3" android:gravity="center" android:background="#0000ff" android:text="blue" android:textColor="#000000" must be followed by a attribute specification i hope i can get help and thanks
它应该是这样的
button1.setOnClickListener(new OnClickListener()
{
public void onClick(View v)
{
//stuff
}
});
button2.setOnClickListener(new OnClickListener()
{
public void onClick(View v)
{
// stuff
}
});
There's no Button.OnClickListener class. Use View.OnClickListener instead. Replace
Button.OnClickListener myListener = new Button.OnClickListener()
with
View.OnClickListener myListener = new View.OnClickListener()
A class can have only one method with the same signature. Remove the other onClick(View) definition.
只需使用这种方式
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button Button1=(Button)findViewById(R.id.Button1);
Button1.setOnClickListener(mClickListener);
}
View.OnClickListener mClickListener =new OnClickListener()
{
@Override
public void onClick(View v) {
// write your code here
}
};