一个activity调用另外一个activity的问题？
我想做一个简单的练习，一个Activity02调用另外一个OtherActivity！调用成功，但是在被调用的OtherActivity中加了一个button，却始终显示不出来!调试的过程中能看到代码是调用了这个button的！
Activity02的代码：
public class Activity02 extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button myButton=(Button)findViewById(R.id.myButton1);
myButton.setText("this is wbn button");
myButton.setOnClickListener(new MyButtonListener());
}
class MyButtonListener implements OnClickListener{
public void onClick(View view){
Intent intent=new Intent();
intent.setClass(Activity02.this, OtherActivity.class);
Activity02.this.startActivity(intent);
}
}
}
相应的layout目录下的main.xml文件：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
<Button android:id="@+id/myButton1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
</LinearLayout>
OtherActivity代码：
public class OtherActivity extends Activity{
public void onCreate(Bundle bunle){
super.onCreate(bunle);
setContentView(R.layout.other);
TextView viewText=(TextView)findViewById(R.id.ViewText1);
viewText.setText("viewText test");
Button button2=(Button)findViewById(R.id.myButton2);
button2.setText("otherActivity Button");
}
}
相应的layout目录下的other.xml文件
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/ViewText1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
<Button
android:id="@+id/myButton2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
</LinearLayout>
AndroidManifest.xml文件内容为：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="myAndroid.activity02"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="10" />
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".Activity02"
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:name=".OtherActivity"
android:label="@string/other">
</activity>
</application>
</manifest>
但是不论怎么调试，button2 和内容“otherActivity Button”，上面的“viewText test”
请高手解决！
[解决办法]
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:orientation="vertical" android:layout_height="match_parent">
<TextView
android:id="@+id/ViewText1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
<Button
android:id="@+id/myButton2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
</LinearLayout>
