[Android]控件和基本事件响应的三种方式
第一种方式[java]
package com.app;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class MainActivity extends Activity {
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button button = (Button) findViewById(R.id.button1);
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent = new Intent(MainActivity.this,SecondActivity.class);
startActivity(intent);
}
});
}
}
第二种方式
[java]
package com.app;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class SecondActivity extends Activity implements OnClickListener{
private Button button1;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_welcome);
button1 = (Button) findViewById(R.id.button1);
button1.setOnClickListener(this);
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch (v.getId()) {
case R.id.button1:
Intent intent = new Intent();
intent.setClass(SecondActivity.this, ThirdActivity.class);
startActivity(intent);
break;
default:
break;
}
}
}
第三种方式
[java]
package com.app;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class ThirdActivity extends Activity{
private Button_OnClick mbutton = new Button_OnClick();
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_third);
Button button = (Button) findViewById(R.id.button1);
button.setOnClickListener(mbutton);
}
class Button_OnClick implements OnClickListener{
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch (v.getId()) {
case R.id.button1:
Intent intent = new Intent();
intent.setClass(ThirdActivity.this, MainActivity.class);
startActivity(intent);
break;
default:
break;
}
}
}
}
补充：移动开发 , Android ,
