1:使用Intent(意图)的方式实现Activity跳转
(1)MainActivity.java:
public class MainActivity extends Activity {
private Button startOther;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
startOther=(Button) findViewById(R.id.button);
startOther.setOnClickListener(new StartListener());
}
class StartListener implements OnClickListener{
@Override
public void onClick(View v) {
// 当点击事件触发后执行,启动OtherActivity
//创建一个Intent对象
Intent intent=new Intent();
//调用setClass方法指定启动某一个Activity
intent.setClass(MainActivity.this, OtherActivity.class);
//调用startActivity
startActivity(intent);
}
}
}
(2)OtherActivity.java
//创建一个类继承自Activity
public class OtherActivity extends Activity {
@Override
//重写onCreate方法,当前Activity的入口
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_other);
}
}
(3)activity_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="第一个Activity" />
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="启动OtherActivity"/>
</LinearLayout>
(4)activity_other.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="wrap_content"
android:layout_height="wrap_content"
android:text="这是第二个Activity"/>
</LinearLayout>
2:BackStack回退栈(先进后出)