Android 实现按钮监听的几种方式

Button buttontest;  
      buttontest = (Button) findViewById(R.id.button1);  
      buttontest.setOnClickListener(new View.OnClickListener() {  
    @Override  
    public void onClick(View v) {  
        // TODO Auto-generated method stub  
        Log.i("TEST", "button onClick");  
    }  
});  

    Button start,stop;
    start = (Button) findViewById(R.id.button1);  
    stop = (Button) findViewById(R.id.button2);  
    start.setOnClickListener(mylistener );  
    stop.setOnClickListener(mylistener );  
    View.OnClickListener mylistener = new View.OnClickListener() {  
            @Override  
            public void onClick(View v) {  
                switch (v.getId()) {  
                case R.id.button1:  
                    Log.d(TAG, "Start to recorder video\n");  
                    start_recorde();  
                    break;  
                case R.id.button2:  
                    Log.d(TAG, "Stop to recorder video\n");  
                    stop_recorde();  
                    break;  
                default:  
                    break;  
                }     
            }  
        };  

<Button   
android:id="@+id/button1"   
android:layout_height="wrap_content"            
android:layout_width="wrap_content"   
android:onClick="mybuttonlistener">  
</Button>  

     Button btn = (Button) findViewById(R.id.button1);  
    public void mybuttonlistener(View target){  
        //do something5       
    }  

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 implements View.OnClickListener{
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button btn1 = (Button) findViewById(R.id.btn1);
btn1.setText("单击");
btn1.setOnClickListener(this);
}
@Override
public void onClick(View v) {
Toast.makeText(this,"已单击我...",Toast.LENGTH_SHORT).show();
System.out.println("已单击我...");
}
}

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
public class Act2 extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_act2);
Button btn2 = (Button) findViewById(R.id.btn2);
btn2.setText("单击");
btn2.setOnClickListener(new OuterClass("已单击我..."));
}
}
class OuterClass implements View.OnClickListener{
private String str="已单击我....";
public OuterClass(String str){
super();
this.str=str;
}
@Override
public void onClick(View v) {
System.out.println(str);
}
}

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
public class Act3 extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_act3);
Button btn3 = (Button) findViewById(R.id.btn3);
btn3.setText("单击");
btn3.setOnClickListener(new OuterClass());
}
class OuterClass implements View.OnClickListener{
@Override
public void onClick(View v) {
Toast.makeText(Act3.this,"已单击我...",Toast.LENGTH_SHORT).show();
System.out.println("已单击我...");
}
}
}

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
public class Act4 extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_act4);
Button btn4 = (Button) findViewById(R.id.btn4);
btn4.setText("单击");
btn4.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(Act4.this,"已单击我...",Toast.LENGTH_SHORT).show();
System.out.println("已单击我...");
}
});
}
}