Android手机软件开发界面跳转一例

Android手机软件开发界面跳转一例 开发环境配置： window server 2008 Eclipse 3.7 JDK1.6 Android2.2 ADT14 //应用程序配置xml文件 //AndroidManifest.xml //-------------------------------------------------------------------------------- <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="LC.HelloWorld" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="7" /> <application android:icon="@drawable/ic_launcher" android:label="@string/app_name" > <activity android:name=".SecPage" android:label="@string/app_name"> <intent-filter > <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:label="@string/app_name" android:name=".HelloWorldActivity" > </activity> <activity android:label="@string/app_name" android:name=".OtherActivity" > </activity> </application> </manifest> //手机界面布局xml文件 res/layout/main.xml //---------------------------------------------------------------------------- <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <TextView android:id="@+id/txt_display" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/hello" /> <TextView android:id="@+id/myTextView" android:layout_width="170dp" android:layout_height="wrap_content" android:text="TextView" /> <Button android:id="@+id/myButton" android:layout_width="fill_parent" android:layout_height="69dp" android:text="Button" /> </LinearLayout> res/layout/other.xml //------------------------------------------------------------------------- <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <TextView android:id="@+id/myTextView2" android:layout_width="170dp" android:layout_height="wrap_content" android:text="TextView" /> <Button android:id="@+id/btn_back" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="back回退" /> </LinearLayout> res/values/strings.xml //------------------------------------------------------------------------- <?xml version="1.0" encoding="utf-8"?> <resources> <string name="hello">Hello World, HelloWorldActivity!</string> <string name="app_name">HelloWorld</string> <string name="other">otherActivity</string> </resources> //源代码 //SecPage.java //------------------------------------------------------------------------- package LC.HelloWorld; import android.app.Activity; //是Activity所在的包 import android.content.DialogInterface; import android.content.DialogInterface.OnClickListener; import android.content.Intent; import android.os.Bundle; //用于映射字符串的值 import android.view.View; import android.widget.Button; import android.widget.TextView; public class SecPage extends Activity { Button myButton=null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); //设置当前视图为main主界面布局R.Layout.main //给按钮添加单击事件 myButton=(Button)this.findViewById(R.id.myButton); myButton.setText("跳转到另一个界面Activity"); myButton.setOnClickListener(new MyButtonListener()); } class MyButtonListener implements android.view.View.OnClickListener { @Override public void onClick(View v) { //生成一个Intent对象 //intent是提供Activity直接交互的抽象描述，可以被startActivty运行。 //intent提供了一个媒介，提供组件的相互调用， //实现调用者和被调用者之间的解耦. Intent intent=new Intent(); intent.setClass(SecPage.this,OtherActivity.class); intent.putExtra("testExtra", "haha我开始跳了哦！"); SecPage.this.startActivity(intent); } } } //OtherActivity.java //--------------------------------------------------------------------------- /** * */ package LC.HelloWorld; import android.app.Activity; import android.content.Intent; import android.view.View; import android.os.Bundle; import android.widget.TextView; import android.widget.Button; /** * @author Administrator * */ public class OtherActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.other); //设置 TextView myTextView=null; //获取上页设置的扩展参数? Intent intent=this.getIntent(); String mytext=intent.getStringExtra("testExtra"); if(mytext!=null && mytext.length()<=0) { mytext="haha_1"; } mytext+=",我已跳过来了!"; //设置文本框的内容 myTextView=(TextView)this.findViewById(R.id.myTextView2); myTextView.setText(mytext); //btn_back 添加回退按钮单击处理事件 Button btn_back=(Button)this.findViewById(R.id.btn_back); btn_back.setOnClickListener(new BackClickListener()); } //定义添加回退按钮单击处理事件 class BackClickListener implements android.view.View.OnClickListener { @Override public void onClick(View v) { Intent intent=new Intent(); intent.setClass(OtherActivity.this,SecPage.class); intent.putExtra("testExtra", "haha我开始跳了哦！"); OtherActivity.this.startActivity(intent); } } } //--the---end---- //2011-11-17 //vp:hsg