Android Studio Button两种监听方法和intent

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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">
    <Button
        android:id="@+id/button_1"
        android:layout_height="wrap_content"
        android:layout_width="match_parent"
        android:text="SHOW"
        />
</LinearLayout>

匿名监听： 

package com.example.qing.first;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
import android.view.View.OnClickListener;
public class MainActivity extends AppCompatActivity{
//    private Button button1;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button button1=(Button)findViewById(R.id.button_1);
        button1.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(MainActivity.this, "You clicked Button 1", Toast.LENGTH_SHORT).show();
            }
        });
    }
}

实现OnClickListener接口：

package com.example.qing.first;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;


public class MainActivity extends AppCompatActivity{
    private Button button1;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        button1=(Button)findViewById(R.id.button_1);
        button1.setOnClickListener(new MyButtonListenrer1());
        // 实现OnClickListener接口


    }

    private class MyButtonListenrer1 implements View.OnClickListener {
        @Override
        public void onClick(View view) {
            Toast.makeText(MainActivity.this,"使用内部类实现Button点击事件",Toast.LENGTH_LONG).show();
        }
    }
}

intent

package com.example.qing.first;
import android.content.Intent;
import android.net.Uri;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;


public class MainActivity extends AppCompatActivity{
    private Button button1;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        button1=(Button)findViewById(R.id.button_1);
        button1.setOnClickListener(new MyButtonListenrer1());
    }

    private class MyButtonListenrer1 implements View.OnClickListener {
        @Override
        public void onClick(View view) {
//          Toast.makeText(MainActivity.this,"使用内部类实现Button点击事件",Toast.LENGTH_LONG).show();
            Intent intent=new Intent(Intent.ACTION_VIEW);
            Uri uri = Uri.parse("http://www.baidu.com");
            intent.setData(uri);
            startActivity(intent);
        }
    }
}