Androdi 开发学习四 Activity和Intent

1：视频

http://edu.51cto.com/lesson/id-15687.html

马老师的  android视频教程第五节

2：遇到问题

The method setOnClickListener(View.OnClickListener) in the type View is not

解决方法：

http://www.cnblogs.com/yigerendehaibian/archive/2012/12/08/2809141.html

http://bbs.51cto.com/thread-1024351-1.html

3：注意第4行和第8行只能存在一个，否则会造成冲突

MainActivity.java

package com.helloworld1;

import android.app.Activity;
import android.content.Intent;
import android.support.v7.app.ActionBarActivity;
//import android.content.DialogInterface.OnClickListener;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.MenuItem;
import android.widget.Button;
import android.widget.TextView;
import android.content.DialogInterface;


public class MainActivity extends ActionBarActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        TextView myTextView = (TextView)findViewById(R.id.MyTextView);
        Button myButtonView = (Button)findViewById(R.id.MyButtonView);
        myTextView.setText("我的第一个Text View");
        myButtonView.setText("我的第一个Button View" + "
" + "guolong");
        findViewById(R.id.MyButtonView).setOnClickListener(new MybuttonListener());  

    }

    class MybuttonListener implements OnClickListener
    {
        public void onClick(View v) {  
            Intent intent = new Intent(MainActivity.this, OtherActivity.class);  
            intent.putExtra("data", "mainActivity");  
            startActivity(intent);    
     
        }
    }

OtherActivity.java

package com.helloworld1;


import android.support.v7.app.ActionBarActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Button;
import android.widget.TextView;

public class OtherActivity extends ActionBarActivity{
    private TextView myTextView = null;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.other_main);
        Intent intent = getIntent();
        String value = intent.getStringExtra("data");
        myTextView = (TextView)findViewById(R.id.MyTextView);
        myTextView.setText(value);
    }
}