[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

---

在mainactivity中重写onCreate,第6行设置按钮监听~

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    Log.v("MainActivity", "onCreate");
    btn = (Button) findViewById(R.id.Main_btn);
    btn.setOnClickListener(this);
    //this.finish(); //结束当前MainActivity
}

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：

@Override
public void onClick(View arg0) {
    if (arg0 == btn) {
        Intent intent = new Intent();
        intent.setClass(this, OtherActivity.class);
        this.startActivity(intent);
    }
}

---

另一个activity也类似：

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.other);
    Log.v("MainActivity", "onCreate");
    btn = (Button) findViewById(R.id.Other_btn);
    btn.setOnClickListener(this);
}

public void onClick(View arg0) {
    if (arg0 == btn) {
        this.finish();
    }
}

---

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：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<TextView  
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="@string/OtherActiviy_hello"
    />
<Button   
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="@string/OtherActiviy_BtnClose"
    android:id="@+id/Other_btn"
    />
</LinearLayout>

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