Android透明區域點擊

情況：我有啓動活動（圖片2）的這個按鈕（圖片1）。Android透明區域點擊

問題：我怎麼能讓它到達當用戶點擊背景（透明）的第二個圖像時它會回到第一個屏幕？

enter image description here

類按鈕：包com.projectcaruso.naturalfamilyplaning;

import com.projectcaruso.naturalfamilyplaning.R; 

    import android.content.Intent; 
    import android.os.Bundle; 
    import android.support.v4.app.Fragment; 
    import android.support.v4.app.FragmentTransaction; 
    import android.view.LayoutInflater; 
    import android.view.View; 
    import android.view.View.OnClickListener; 
    import android.view.ViewGroup; 
    import android.widget.ImageButton; 

    public class LoginFragment extends Fragment implements OnClickListener{ 

     @Override 
     public void onCreate(Bundle savedInstanceState) { 
      super.onCreate(savedInstanceState); 
     }   

     public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 
      View view = inflater.inflate(R.layout.fragment_login, null); 

      ImageButton connect = (ImageButton) view.findViewById(R.id.facebooklogin); 
      connect.setOnClickListener(this); 


      return view; 
     } 

     @Override 
     public void onClick(View arg0) { 
      // TODO Auto-generated method stub 
      // Create new fragment and transaction 
      Fragment newFragment = new FacebookActivity(); 
      FragmentTransaction transaction = getFragmentManager().beginTransaction(); 

      // Replace whatever is in the fragment_container view with this fragment, 
      // and add the transaction to the back stack 
      transaction.replace(R.id.fragment_container, newFragment); 
      transaction.addToBackStack(null); 

      // Commit the transaction 
      transaction.commit(); 

      Intent intent = new Intent(); 
      intent.setClass(getActivity(), FacebookActivity.class); 
      startActivity(intent); 
     } 

    }

DialogFragment：包com.projectcaruso.naturalfamilyplaning;

import com.projectcaruso.naturalfamilyplaning.R; 
import android.app.AlertDialog; 
import android.app.Dialog; 
import android.content.DialogInterface; 
import android.os.Bundle; 
import android.support.v4.app.DialogFragment; 
import android.view.LayoutInflater; 

public class FacebookActivity extends DialogFragment { 
    @Override 
    public Dialog onCreateDialog(Bundle savedInstanceState) { 
     AlertDialog.Builder builder = new AlertDialog.Builder(getActivity()); 
     // Get the layout inflater 
     LayoutInflater inflater = getActivity().getLayoutInflater(); 

     // Inflate and set the layout for the dialog 
     // Pass null as the parent view because its going in the dialog layout 
     builder.setView(inflater.inflate(R.layout.facebook_login, null)) 

     // Add action buttons 
       .setPositiveButton(R.string.signin, new DialogInterface.OnClickListener() { 
        @Override 
        public void onClick(DialogInterface dialog, int id) { 
         // sign in the user ... 
        } 
       }) 
       .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() { 
        public void onClick(DialogInterface dialog, int id) { 
         FacebookActivity.this.getDialog().cancel(); 
        } 
       });  
     return builder.create(); 
    } 
}

編輯的logcat：

05-17 18:28:21.224: W/dalvikvm(27699): threadid=1: thread exiting with uncaught exception (group=0x40a71930) 
    05-17 18:28:21.245: E/AndroidRuntime(27699): FATAL EXCEPTION: main 
    05-17 18:28:21.245: E/AndroidRuntime(27699): java.lang.IllegalArgumentException: No view found for id 0x7f050038 (com.projectcaruso.naturalfamilyplaning:id/fragment_container) for fragment FacebookActivity{40cd27e8 #2 id=0x7f050038} 
    05-17 18:28:21.245: E/AndroidRuntime(27699): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:903) 
    05-17 18:28:21.245: E/AndroidRuntime(27699): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1088) 
    05-17 18:28:21.245: E/AndroidRuntime(27699): at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682) 
    05-17 18:28:21.245: E/AndroidRuntime(27699): at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1444) 
    05-17 18:28:21.245: E/AndroidRuntime(27699): at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:429) 
    05-17 18:28:21.245: E/AndroidRuntime(27699): at android.os.Handler.handleCallback(Handler.java:725) 
    05-17 18:28:21.245: E/AndroidRuntime(27699): at android.os.Handler.dispatchMessage(Handler.java:92) 
    05-17 18:28:21.245: E/AndroidRuntime(27699): at android.os.Looper.loop(Looper.java:137) 
    05-17 18:28:21.245: E/AndroidRuntime(27699): at android.app.ActivityThread.main(ActivityThread.java:5041) 
    05-17 18:28:21.245: E/AndroidRuntime(27699): at java.lang.reflect.Method.invokeNative(Native Method) 
    05-17 18:28:21.245: E/AndroidRuntime(27699): at java.lang.reflect.Method.invoke(Method.java:511) 
    05-17 18:28:21.245: E/AndroidRuntime(27699): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 
    05-17 18:28:21.245: E/AndroidRuntime(27699): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 
    05-17 18:28:21.245: E/AndroidRuntime(27699): at dalvik.system.NativeStart.main(Native Method) 
    05-17 18:28:23.764: E/Trace(27715): error opening trace file: No such file or directory (2)

編輯XML：

<?xml version="1.0" encoding="utf-8"?> 

    <RelativeLayout 
     xmlns:android="http://schemas.android.com/apk/res/android" 
     android:layout_width="match_parent" android:layout_height="match_parent" > 

      <RelativeLayout 
       android:id="@+id/fragment_container" 
       android:layout_width="250dp" 
       android:layout_height="350dp" 
       android:layout_gravity="center" 
       android:background="#3B5998" 
       android:orientation="vertical"> 


         <!-- Facebook logo --> 
         <ImageView 
          android:id="@+id/facebooklogo3" 
          android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:layout_alignLeft="@+id/lblEmail" 
          android:layout_alignParentTop="true" 
          android:layout_alignRight="@+id/txtEmail" 
          android:layout_marginTop="19dp" 
          android:src="@drawable/com_facebook_logo" /> 

         <!-- Email inforamtion --> 
         <TextView 
          android:id="@+id/lblEmail" 
          android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:layout_alignLeft="@+id/lblPassword" 
          android:layout_below="@+id/facebooklogo3" 
          android:text="Email:" 
          android:textColor="#ffffff" 
          android:textSize="20sp" /> 

         <EditText 
          android:id="@+id/txtEmail" 
          android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:layout_alignLeft="@+id/lblEmail" 
          android:layout_alignParentRight="true" 
          android:layout_below="@+id/lblEmail" 
          android:layout_marginRight="10dp" 
          android:background="#fff" 
          android:ems="10" 
          android:inputType="textEmailAddress" /> 

         <!-- Passworld informaiton --> 
         <TextView 
          android:id="@+id/lblPassword" 
          android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:layout_below="@+id/txtEmail" 
          android:layout_marginLeft="10dp" 
          android:text="Password:" 
          android:textColor="#ffffff" 
          android:textSize="20sp" /> 

         <EditText 
          android:id="@+id/txtPassword" 
          android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:layout_alignLeft="@+id/lblPassword" 
          android:layout_alignParentRight="true" 
          android:layout_below="@+id/lblPassword" 
          android:layout_marginRight="10dp" 
          android:background="#fff" 
          android:ems="10" 
          android:inputType="textPassword" 
          android:padding="2dp"/> 

         <!-- Save --> 

         <TextView 
          android:id="@+id/signup" 
          android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:layout_alignParentBottom="true" 
          android:layout_alignParentLeft="true" 
          android:layout_alignParentRight="true" 
          android:layout_marginBottom="20dp" 
          android:gravity="center" 
          android:text="Need an account? \n Sign up using your phone" 
          android:textAppearance="?android:attr/textAppearanceMedium" 
          android:textColor="#ffffff" /> 

         <CheckBox 
          android:id="@+id/savelogin" 
          android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:layout_alignLeft="@+id/txtPassword" 
          android:layout_below="@+id/txtPassword" 
          android:layout_marginTop="16dp" 
          android:text="Save Login" 
          android:textColor="#ffffff" 
          android:textSize="20sp" /> 
       </RelativeLayout> 
    </RelativeLayout>

馬納費斯特：

<activity android:name=".FacebookActivity" android:theme="@style/Theme.Transparent"/>

來源

2013-05-17 jcaruso

您可以實現第二個屏幕爲Dialog，然後調用dialog.setCanceledOnTouchOutside(true) whic如果觸摸對話框外部的屏幕，h將關閉對話框。

來源

2013-05-17 14:18:39 makovkastar

那麼這聽起來合理，我將如何實現一個XML作爲對話框？ – jcaruso

現在推薦使用DialogFragment來實現Android中的對話行爲。所以如果你打算遵循良好的做法 - 閱讀 - [鏈接]（http://developer.android.com/guide/topics/ui/dialogs.html）快速解決方案： \t'LayoutInflater inflater = getLayoutInflater （）; \t查看dialogLayout = inflater.inflate（R.layout.dialog_layout，null）; \t AlertDialog.Builder dialogBuilder = new AlertDialog.Builder（this）; \t dialogBuilder.setView（dialogLayout）; AlertDialog dialog = dialogBuilder.create（）; dialog.setCanceledOnTouchOutside（true）; \t dialog.show（）;' – makovkastar

好吧，我已盡了最大努力來使用最佳實踐，但它在加載時崩潰。 – jcaruso

你可以像makovkastar那樣做，或者一個不太理想的解決方案是重寫活動的默認onTouch方法並檢測用戶在哪裏按下。如果它超出了框的範圍，將它的可見性屬性發送到View.GONE

來源

2013-05-17 14:30:38 Montycarlo

Android透明區域點擊

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