startActivityForResultは何も（画像PreferenceActivityからピッキング）

Question

を返していない私はPreferenceActivityで「画像選択」があります。

Intent i = new Intent(Intent.ACTION_PICK, 
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI); 

startActivityForResult(i, IMAGE_SELECT); 

をしかし、私はギャラリーから画像を選択するとき、それは私のPreferenceActivityのには何も返しません。 onActivityResult：

@Override 
protected void onActivityResult(int requestCode, int resultCode, Intent data) { 

    Toast.makeText(getApplicationContext(), "THIS TOAST IS NOT SHOWING", 
      Toast.LENGTH_LONG).show(); 

} 

これ以上何をする必要がありますか？マニフェストに何かを追加しますか？それは不可能ですか？

私はあなたが私を助けることを願って

、感謝;）

EDIT：

package com.xuso.myapp; 


import yuku.ambilwarna.AmbilWarnaDialog; 
import yuku.ambilwarna.AmbilWarnaDialog.OnAmbilWarnaListener; 
import android.app.Activity; 
import android.app.AlertDialog; 
import android.app.AlertDialog.Builder; 
import android.content.Context; 
import android.content.DialogInterface; 
import android.content.Intent; 
import android.content.SharedPreferences; 
import android.database.Cursor; 
import android.graphics.Bitmap; 
import android.graphics.BitmapFactory; 
import android.net.Uri; 
import android.os.Bundle; 
import android.preference.CheckBoxPreference; 
import android.preference.ListPreference; 
import android.preference.Preference; 
import android.preference.Preference.OnPreferenceChangeListener; 
import android.preference.Preference.OnPreferenceClickListener; 
import android.preference.PreferenceActivity; 
import android.provider.MediaStore; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.widget.SeekBar; 
import android.widget.SeekBar.OnSeekBarChangeListener; 
import android.widget.TextView; 
import android.widget.Toast; 



public class Settings extends PreferenceActivity { 

    protected static final int NEED_RESTART = 2; 
    protected static final int IMAGE_SELECT = 3; 
    private int bg_color; //There are a lot more 

    private Context context = this; 
    private int result = RESULT_CANCELED; 

    private SharedPreferences sp; 
    private SharedPreferences.Editor editor; 


    Preference pref_bg_color; //There are a lot more 



    public void getPrefs(){ 

     sp = getSharedPreferences("myapp_prefs", Activity.MODE_PRIVATE); 
     editor = sp.edit(); 

     bg_color = sp.getInt("pref_bg_color", 0xff000000); 
     //... and the rest of the GETs. 

    } 






    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     addPreferencesFromResource(R.xml.settings); 


     getPrefs(); 


     //A lot of declarations of listeners when Preferences pressed 
     //... 
     //... 
      pref_bg_image.setOnPreferenceClickListener(new OnPreferenceClickListener() { 

       @Override 
       public boolean onPreferenceClick(Preference preference) { 

        Intent i = new Intent(Intent.ACTION_PICK, 
           android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI); 
       startActivityForResult(i, IMAGE_SELECT); 


        return false; 
       } 
      }); 


     //... 
    //... 
    //More and more declarations of Preferences. 





    } 



    //This is for returning results with preferences changes to the Main activity 
    private void getBackAndCommit() 
    { 
     Intent intent= getIntent(); 
     setResult(result, intent); 
     finish(); 
     overridePendingTransition(0, 0); 
    } 


    //Commit changes on back pressed 
    public void onBackPressed() 
    { 

     getBackAndCommit(); 

    } 


    @Override 
    protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
     switch(requestCode) { 
     case IMAGE_SELECT: 
      if(resultCode == RESULT_OK){ 
       Uri selectedImage = data.getData(); 
       String[] filePathColumn = {MediaStore.Images.Media.DATA}; 

       Cursor cursor = getContentResolver().query(selectedImage, filePathColumn, null, null, null); 
       cursor.moveToFirst(); 

       int columnIndex = cursor.getColumnIndex(filePathColumn[0]); 
       String filePath = cursor.getString(columnIndex); 
       cursor.close(); 


       Bitmap yourSelectedImage = BitmapFactory.decodeFile(filePath); 
      } 
     } 

    } 



} 

そしてこれが私です：

これは私の "全体" クラス（omited無関係コード）でありますマニフェスト：

Answer 1

働かなければならないが、クラス全体を追加しました：

import android.app.Activity; 
import android.content.Intent; 
import android.os.Bundle; 

public class StackOverflowAppActivity extends Activity { 
    private final int PICK_IMAGE = 0; 

    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main); 

     Intent i = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI); 
     startActivityForResult(i, PICK_IMAGE); 


    } 

    @Override 
    protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
     super.onActivityResult(requestCode, resultCode, data); 

     switch (requestCode) { 

     case PICK_IMAGE: 
      if (resultCode == RESULT_OK) { 
       // do your thing 
      } 
     } 
    } 
} 

Answer 2

おそらくt彼はあなたの問題を解決することができます。

protected void onActivityResult(int requestCode, int resultCode, Intent imageReturnedIntent) { 
     super.onActivityResult(requestCode, resultCode, imageReturnedIntent); 

     switch(requestCode) { 
     case REQ_CODE_PICK_IMAGE: 
      if(resultCode == RESULT_OK){ 
       Uri selectedImage = imageReturnedIntent.getData(); 
       String[] filePathColumn = {MediaStore.Images.Media.DATA}; 

       Cursor cursor = getContentResolver().query(selectedImage, filePathColumn, null, null, null); 
       cursor.moveToFirst(); 

       int columnIndex = cursor.getColumnIndex(filePathColumn[0]); 
       String filePath = cursor.getString(columnIndex); 
       cursor.close(); 


       Bitmap yourSelectedImage = BitmapFactory.decodeFile(filePath); 
      } 
     } 
    } 

Answer 3

は

getActivity().startActivityForResult(i, IMAGE_SELECT); 

と出来上がりで

startActivityForResult(i, IMAGE_SELECT); 

を交換してください！