1.main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="俺是第一個界面"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="點擊調用第二個activity"
android:id="@+id/mainbtn"
/>
</LinearLayout>
2.two.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="俺是第二個界面"
/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="點擊調用第一個activity"
android:id="@+id/twobtn"
/>
</LinearLayout>
3.MainActivity.java
package cn.class3g.activity;
import android.app.Activity;
import android.app.SearchManager.OnCancelListener;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class MainActivity extends Activity {
/** Called when the activity is first created. */
private Button mainbtn=null;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mainbtn=(Button) findViewById(R.id.mainbtn);
mainbtn.setOnClickListener(listener);
}
private OnClickListener listener= new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent =new Intent();
//指定原本class 和要啓動的class
intent.setClass(MainActivity.this, TwoActivity.class);
startActivity(intent);
MainActivity.this.finish();
}
};
}
4.TwoActivity.java
package cn.class3g.activity;
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 TwoActivity extends Activity {
private Button twobtn=null;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.two);
twobtn=(Button) findViewById(R.id.twobtn);
twobtn.setOnClickListener(listener);
}
private OnClickListener listener= new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent =new Intent();
intent.setClass(TwoActivity.this, MainActivity.class);
startActivity(intent);
TwoActivity.this.finish();
}
};
}
