页面的跳转

一：第一步先创建一个项目，名字可以随便取但是首字母要大写

二：在项目里面我划线的地方进行编写代码

 

1：也可以在layout里面进行创建新的项目

点进去后点next 

 

写完之后点击Finish就创建完成了 

三：创建页面

1：先创建一个带有图片的页面

2：在创建一个可以登录或者注册的页面（这里我写的是注册系统） 

3：在创建一个可以显示吐丝的页面

四：进行连接 

1：找到第一个页面相对应得java代码段并书写代码和第二个（注册页面）进行连接

package com.example.day5;

import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;

public class BarActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_bar);
		
		Thread t = new Thread(new Runnable() {
			
			@Override
			public void run() {
				// TODO Auto-generated method stub
				try {
					Thread.sleep(3000);
				} catch (InterruptedException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
				Intent it = new Intent(getApplicationContext(), MainActivity.class);
				startActivity(it);
			}
		});
		t.start();
	}

}

 2：第一个和第二个页面进行连接（找到第二个java代码段和上面一样）

package com.example.day5;

import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.View;
import android.view.WindowManager;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.Spinner;

public class MainActivity extends Activity implements OnClickListener {
	//1:定义id控件
	private EditText etusername,etpwd;
	private RadioButton rbM,rbW;
	private CheckBox cb1,cb2,cb3,cb4;
	private Button btnCommit,btnCancle;
	private Spinner spItem;
	String[] items = null;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		 //影藏状态栏
        getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
        //影藏标题栏
        getActionBar().hide();
		setContentView(R.layout.activity_main);
		// 2:找到id控件
		init();
		// 3:设置点击事件
		btnCommit.setOnClickListener(this);
		//准备数据
		//标题数据
		items = new String[]{"移动212","移动213","移动214","移动215"};
		//使用适配器来进行页面和数据的链接
		ArrayAdapter adapter = new ArrayAdapter(getApplicationContext(),
				R.layout.ilte,items);
		spItem.setAdapter(adapter);
	}

	private void init() {
		 etusername = (EditText) findViewById(R.id.et_username);
		 etpwd = (EditText) findViewById(R.id.et_pwd);
		 rbM = (RadioButton) findViewById(R.id.rd_M);
		 rbW = (RadioButton) findViewById(R.id.rd_W);
		 cb1 = (CheckBox) findViewById(R.id.cb_1);
		 cb2 = (CheckBox) findViewById(R.id.cb_2);
		 cb3 = (CheckBox) findViewById(R.id.cb_3);
		 cb4 = (CheckBox) findViewById(R.id.cb_4);
		 btnCommit = (Button) findViewById(R.id.btn_Commit);
		 btnCancle = (Button) findViewById(R.id.btn_Cancle);
		 spItem = (Spinner) findViewById(R.id.sp_Item);
	}

	@Override
	public void onClick(View arg0) {
		//4:获取用户名
		String userName = etusername.getText().toString();
		//5:获取密码
		String pwd = etpwd.getText().toString();
		//6:获取性别单选
		String sex = "";
		if(rbM.isChecked()){
			sex = rbM.getText().toString();
		}
		if(rbW.isChecked()){
			sex = rbW.getText().toString();
		}
		//7:获取爱好
		String fav = "";
		if(cb1.isChecked()){
			fav += cb1.getText().toString();
		}
		if(cb2.isChecked()){
			fav += cb2.getText().toString();
		}
		if(cb3.isChecked()){
			fav += cb3.getText().toString();
		}
		if(cb4.isChecked()){
			fav += cb4.getText().toString();
		}
		//7.2获取下拉列表选中的内容
		int i = spItem.getSelectedItemPosition();
		String spItem = items[i];
		//8:传值跳转
		Intent it = new Intent(getApplicationContext(),InfoActivity.class);
		it.putExtra("userName",userName);
		it.putExtra("pwd",pwd);
		it.putExtra("sex",sex);
		it.putExtra("fav",fav);
		it.putExtra("spItem",spItem);
		
		startActivity(it);
	}

}

2.2：这里有个下拉列表的字体和背景修改

 3：第二个页面和第三个页面进行连接

package com.example.day5;

import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.widget.TextView;
import android.widget.Toast;


public class InfoActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_info);
		
		Intent it = getIntent();
		
		String userName = it.getStringExtra("userName");
		String pwd = it.getStringExtra("pwd");
		String sex = it.getStringExtra("sex");
		String fav = it.getStringExtra("fav");
		String spItem = it.getStringExtra("spItem");
		
		String str = userName + ":" + pwd + ":"+sex+":"+fav+":"+spItem;
		
		Toast.makeText(getApplicationContext(), str, 1).show();
		
		TextView tvShow = (TextView) findViewById(R.id.tv_show);
		tvShow.setText(str);
	}



}

 五：运行

 

 

 

 六：这样就可以看到实现3个页面的跳转l