Android Activity Button Intent Textview Toast使用

1、两个Activity通过Intent相互调用需要在AndroidManifest.xml中增加第二个Activity
2、添加Activity之后不要忘记调用setContentView来调用第二个Activity来显示

package com.example.jiutian01;
import android.support.v7.app.ActionBarActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

import android.widget.Toast;
public class MainActivity extends ActionBarActivity {

	private Button mybutton=null;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        TextView myText=(TextView)findViewById(R.id.myTextView);
        myText.setText("first TextView");
        mybutton=(Button)findViewById(R.id.button1);
        mybutton.setOnClickListener(new MyButtonListener());
    }
    class MyButtonListener implements OnClickListener{

		@Override
		public void onClick(View arg0) {
			// TODO Auto-generated method stub

			Toast.makeText(MainActivity.this,"接口OnClickListener",Toast.LENGTH_SHORT).show();
			Intent intent=new Intent();
			intent.setClass(MainActivity.this,otherActivity.class);
			MainActivity.this.startActivity(intent);
		}
    	
    }



}