下面介绍Button事件实现的两种方法
main.xml
- <?xml version="1.0" encoding="utf-8"?>
-
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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android:orientation="vertical"
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android:layout_width="fill_parent"
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android:layout_height="fill_parent"
-
>
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<TextView
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android:layout_width="fill_parent"
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android:layout_height="wrap_content"
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android:text="@string/hello"
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/>
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<Button
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android:id="@+id/myButton1"
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android:text=" 按钮1 "
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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/>
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<Button
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android:id="@+id/myButton2"
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android:text=" 按钮2 "
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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/>
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</LinearLayout>
strings.xml
- <?xml version="1.0" encoding="utf-8"?>
-
<resources>
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<string name="hello">Hello World, ButtonDemoActivity!</string>
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<string name="app_name">ButtonDemo</string>
-
</resources>
第一种:
ButtonDemoActivity.java
- package com.android.ButtonDemo.activity;
-
-
import android.app.Activity;
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import android.os.Bundle;
-
import android.view.View;
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import android.view.View.OnClickListener;
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import android.widget.Button;
-
import android.widget.Toast;
-
-
public class ButtonDemoActivity extends Activity {
- Button myButton1,myButton2;
-
@Override
-
public void onCreate(Bundle savedInstanceState) {
-
super.onCreate(savedInstanceState);
- setContentView(R.layout.main);
-
- myButton1=(Button)findViewById(R.id.myButton1);
- myButton2=(Button)findViewById(R.id.myButton2);
-
-
-
myButton1.setOnClickListener(new OnClickListener()
- {
-
public void onClick(View v)
- {
-
Toast.makeText(ButtonDemoActivity.this, "你点击了按钮1",Toast.LENGTH_LONG).show();
- }
- });
-
myButton2.setOnClickListener(new OnClickListener()
- {
-
public void onClick(View v)
- {
-
Toast.makeText(ButtonDemoActivity.this, "你点击了按钮2",Toast.LENGTH_LONG).show();
- }
- });
- }
- }
第二种:
ButtonDemoActivity.java
- package com.android.ButtonDemo.activity;
-
-
import android.app.Activity;
-
import android.os.Bundle;
-
import android.view.View;
-
import android.view.View.OnClickListener;
-
import android.widget.Button;
-
import android.widget.Toast;
-
-
public class ButtonDemoActivity extends Activity {
- Button myButton1,myButton2;
-
@Override
-
public void onCreate(Bundle savedInstanceState) {
-
super.onCreate(savedInstanceState);
- setContentView(R.layout.main);
-
- myButton1=(Button)findViewById(R.id.myButton1);
- myButton2=(Button)findViewById(R.id.myButton2);
-
myButton1.setOnClickListener(new ButtonClick());
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myButton2.setOnClickListener(new ButtonClick());
-
- }
-
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class ButtonClick implements OnClickListener
- {
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public void onClick(View v)
- {
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switch (v.getId()) {
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case R.id.myButton1:
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Toast.makeText(ButtonDemoActivity.this, "你点击了按钮1",Toast.LENGTH_LONG).show();
-
break;
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case R.id.myButton2:
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Toast.makeText(ButtonDemoActivity.this, "你点击了按钮2",Toast.LENGTH_LONG).show();
-
break;
-
default:
-
break;
- }
- }
- }
- }
-
本文转自 lingdududu 51CTO博客,原文链接:
http://blog.51cto.com/liangruijun/629329