在这个程序中,我实现了滑动菜单库。我现在遇到的问题是为这些菜单设置点击监听器。
该库要求菜单是不同的布局,或者至少这是我实现它的方式。我现在想要实现的是对这些菜单选项实现各种 onClick 侦听器。
该程序看起来像这样(它的一小部分):
菜单.xml
<RelativeLayout android:id="@+id/ask_a_question"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="15dp"
android:layout_marginBottom="5dp"
android:onClick="getQuestion">
<TextView android:layout_alignParentLeft="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/ask_a_question"
android:textColor="#ffffff"
android:layout_marginLeft="15dp"
android:layout_centerVertical="true"/>
<ImageView android:layout_alignParentRight="true"
android:contentDescription="@string/ask_a_question"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/question"
android:layout_marginRight="15dp"/>
</RelativeLayout>
在它的MainActivity.java程序看起来像这样:
public void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setBehindContentView(R.layout.menu);
getSlidingMenu().setBehindOffset(100);
ask_a_question = (RelativeLayout)findViewById(R.id.ask_a_question);
ask_a_question.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
getQuestion();
}
});
login = (Button)findViewById(R.id.log_in_button);
login.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
startActivity(new Intent("com.example.btshome.LOGINACTIVITY"));
}
});
}
public Intent getQuestion()
{
Intent i = new Intent("com.example.btshome.ASKPAGE");
startActivity(i);
return null;
}
返回以下错误:
04-23 19:43:30.030: E/AndroidRuntime(845): FATAL EXCEPTION: main
04-23 19:43:30.030: E/AndroidRuntime(845): android.content.ActivityNotFoundException: No Activity found to handle Intent { act=com.example.btshome.ASKPAGE }
04-23 19:43:30.030: E/AndroidRuntime(845): at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1545)
04-23 19:43:30.030: E/AndroidRuntime(845): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1416)
04-23 19:43:30.030: E/AndroidRuntime(845): at android.app.Activity.startActivityForResult(Activity.java:3351)
04-23 19:43:30.030: E/AndroidRuntime(845): at android.app.Activity.startActivityForResult(Activity.java:3312)
04-23 19:43:30.030: E/AndroidRuntime(845): at android.app.Activity.startActivity(Activity.java:3522)
04-23 19:43:30.030: E/AndroidRuntime(845): at android.app.Activity.startActivity(Activity.java:3490)
04-23 19:43:30.030: E/AndroidRuntime(845): at com.example.btshome.MainActivity.getQuestion(MainActivity.java:47)
04-23 19:43:30.030: E/AndroidRuntime(845): at com.example.btshome.MainActivity$1.onClick(MainActivity.java:30)
04-23 19:43:30.030: E/AndroidRuntime(845): at android.view.View.performClick(View.java:4084)
04-23 19:43:30.030: E/AndroidRuntime(845): at android.view.View$PerformClick.run(View.java:16966)
04-23 19:43:30.030: E/AndroidRuntime(845): at android.os.Handler.handleCallback(Handler.java:615)
04-23 19:43:30.030: E/AndroidRuntime(845): at android.os.Handler.dispatchMessage(Handler.java:92)
04-23 19:43:30.030: E/AndroidRuntime(845): at android.os.Looper.loop(Looper.java:137)
04-23 19:43:30.030: E/AndroidRuntime(845): at android.app.ActivityThread.main(ActivityThread.java:4745)
04-23 19:43:30.030: E/AndroidRuntime(845): at java.lang.reflect.Method.invokeNative(Native Method)
04-23 19:43:30.030: E/AndroidRuntime(845): at java.lang.reflect.Method.invoke(Method.java:511)
04-23 19:43:30.030: E/AndroidRuntime(845): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
04-23 19:43:30.030: E/AndroidRuntime(845): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
04-23 19:43:30.030: E/AndroidRuntime(845): at dalvik.system.NativeStart.main(Native Method)
清单页面:
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.btshome.MainActivity"
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=".LoginActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="com.example.btshome.LOGINACTIVITY"/>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>
<activity android:name=".SignUp"
android:label="@string/app_name">
<intent-filter>
<action android:name="com.example.btshome.SIGNUP"/>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>
<activity android:name=".LoginPage"
android:label="@string/app_name">
<intent-filter>
<action android:name="com.example.btshome.LOGINPAGE"/>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>
<activity
android:name=".QuestionAsking"
android:label="@string/app_name" >
<intent-filter>
<action android:name="com.example.btshome.ASKPAGE" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
我在单击时实现此菜单项的方法是否良好?或者这是一个不好的方法,因为我必须在我的所有页面上都提供滑动菜单。请帮忙。