[安卓] 1、页面跳转+按钮监听

 

 

共2个layout:main.xml和other.xml;2个activity:MainActivity.java,OtherActivity.java

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在mainactivity中重写onCreate,第6行设置按钮监听~

1 public void onCreate(Bundle savedInstanceState) {

2     super.onCreate(savedInstanceState);

3     setContentView(R.layout.main);

4     Log.v("MainActivity", "onCreate");

5     btn = (Button) findViewById(R.id.Main_btn);

6     btn.setOnClickListener(this);

7     //this.finish(); //结束当前MainActivity

8 }

下面是对按钮监听的实现:即当按钮被按下时，跳转到另一页面：

1 @Override

2 public void onClick(View arg0) {

3     if (arg0 == btn) {

4         Intent intent = new Intent();

5         intent.setClass(this, OtherActivity.class);

6         this.startActivity(intent);

7     }

8 }

 

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另一个activity也类似：

1 public void onCreate(Bundle savedInstanceState) {

2     super.onCreate(savedInstanceState);

3     setContentView(R.layout.other);

4     Log.v("MainActivity", "onCreate");

5     btn = (Button) findViewById(R.id.Other_btn);

6     btn.setOnClickListener(this);

7 }

1 public void onClick(View arg0) {

2     if (arg0 == btn) {

3         this.finish();

4     }

5 }

 

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有人会觉得OtherActivity为什么是那个样子的，暂时我也不清楚，先把他的xml文件贴下：

 1 <?xml version="1.0" encoding="utf-8"?>

 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

 3     android:orientation="vertical"

 4     android:layout_width="fill_parent"

 5     android:layout_height="fill_parent"

 6     >

 7 <TextView  

 8     android:layout_width="fill_parent" 

 9     android:layout_height="wrap_content" 

10     android:text="@string/OtherActiviy_hello"

11     />

12 <Button   

13     android:layout_width="fill_parent" 

14     android:layout_height="wrap_content" 

15     android:text="@string/OtherActiviy_BtnClose"

16     android:id="@+id/Other_btn"

17     />

18 </LinearLayout>

 

 

 

 

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