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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                其實這部分知識點不難,只不過感覺有點多而且雜。這里就寫個簡單的action和category匹配吧。 代碼很快就寫完了,寫了兩個Activity,不過測試總是ANF錯誤,坑爹!之后查了很多資料才知道如果自己定義的某個Activity要通過隱式調用,在AndroidManifast.xm那么必須加上android.intent.category.DEFAULT,否則不起作用,因為系統會默認給你加上android.intent.category.DEFAULT這貨。intent filter這貨允許你添加多個category條目,如果有一個category不匹配系統就會判定不匹配。 寫的有點亂,下面貼代碼: 兩個Activity: ~~~ package com.example.mytest; import android.net.wifi.WifiManager; import android.os.Bundle; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.view.Menu; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.Toast; public class MainActivity extends Activity { private Button bt; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); bt = (Button) this.findViewById(R.id.bt); bt.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub Intent intent = new Intent(); intent.setAction("nextActivity"); intent.addCategory("haha"); startActivity(intent); } }); } } ~~~ ~~~ package com.example.mytest; import android.app.Activity; import android.os.Bundle; public class NextActivity extends Activity{ @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.next_activity); } } ~~~ 下面是清單文件: ~~~ <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.mytest" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="17" /> <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name="com.example.mytest.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="com.example.mytest.NextActivity" android:label="@string/app_name" > <intent-filter> <action android:name="nextActivity" /> <category android:name="android.intent.category.DEFAULT" /> <category android:name="haha" /> </intent-filter> </activity> </application> </manifest> ~~~
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                              哎呀哎呀视频在线观看