This article has shared four click events for Android Button button for your reference. The specific content is as follows
The first type:Internal class implementation
Set Button attribute first
<Button android:; android:layout_width="wrap_parent"; android:layout_height="wrap_parent" android:text="Button"/>
2. Find the button
Button btn =(Button)findViewById(.button1)
3. Set a click event for Button
(new MyClickListener())//IncomingIt's the ClickListener parameter, so we have to define a parameter interface
4. Define a class to implement the interface type required by the button
public MianActivity extend Activity(){
...
...
private class MyClickListener()implent OnclickListener{
//Called when the button is clicked public void Onclick （View v）{
// Write the click event method here ("Clicked")
}
}
}
The second type:Using anonymous internal classes to implement
Set Button attribute first
<Button android:; android:layout_width="wrap_parent"; android:layout_height="wrap_parent" android:text="Button"/>
2. Find the button
Button btn =(Button)findViewById(.button1);
3. Set a click event for Button
//Anonymous internal classpublic MianActivity extend Activity(){
...
...
(new OnClickListener(){
public void Onclick （View v）{
// Write the click event method here ("Clicked")
}
} )
};
The third type:Activity implements the OnclickListener interface suitable for multiple button situations
Set Button attribute first
<Button android:; android:layout_width="wrap_parent"; android:layout_height="wrap_parent" android:text="Button"/> <Button android:; android:layout_width="wrap_parent"; android:layout_height="wrap_parent" android:text="Button 2"/> <Button android:; android:layout_width="wrap_parent"; android:layout_height="wrap_parent" android:text="Button 3"/>
2. Find the button
Button btn =(Button)findViewById(.button1) Button btn2 =(Button)findViewById(.button2) Button btn3 =(Button)findViewById(.button3)
3. Set a click event for Button
public MianActivity extend Activity implement OnClickListener(){
...
...
Button btn =(Button)findViewById(this);//this stands for MainActivity Button btn2 =(Button)findViewById(this)
Button btn3 =(Button)findViewById(this)
public void Onclick （View v）{
//Determine which button is clicked specifically switch(()){
.button1:// means click the first button TODO();//Implement specific methods break;
.button2:
TODO();//Implement specific methods break;
.button3:
TODO();//Implement specific methods break;
default:
break;
}
}
private void TODO(){
//Specific method }
}
The fourth type:Declare onclick in xml
Set Button attribute first
<Button android:; android:layout_width="wrap_parent"; android:layout_height="wrap_parent" android:text="Button" android:onClick="click"/>
2. Find the button
Button btn =(Button)findViewById(.button1)
3. Declare a method, the method name is the same as the Onclick attribute declared in the XML layout of the button you want to click.
public void **click**(View v){
TODO();//Implement specific methods}
The above is all the content of this article. I hope it will be helpful to everyone's study and I hope everyone will support me more.