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POstartActivityForResult does not returns anything (Image Picking from a PreferenceActivity)
 

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  1. POstartActivityForResult does not returns anything (Image Picking from a PreferenceActivity)
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    <p>I have a "Select image" in a PreferenceActivity:</p> <pre><code>Intent i = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI); startActivityForResult(i, IMAGE_SELECT); </code></pre> <p>But when I pick an image from Gallery, it does not return anything to my PreferenceActivity's onActivityResult:</p> <pre><code>@Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { Toast.makeText(getApplicationContext(), "THIS TOAST IS NOT SHOWING", Toast.LENGTH_LONG).show(); } </code></pre> <p>What more I need to do? Add something to the manifest? Is it impossible?</p> <p>I hope you can help me, thanks ;)</p> <p><strong>EDIT:</strong></p> <p>This is my "whole" class (omited irrelevant code):</p> <pre><code>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); } } } } </code></pre> <p>And this is my manifest:</p> <pre><code>&lt;application android:icon="@drawable/myapp_icon" android:label="@string/app_name" &gt; &lt;activity android:name=".Main" android:label="@string/app_name" android:theme="@android:style/Theme.NoTitleBar" &gt; &lt;intent-filter&gt; &lt;action android:name="android.intent.action.MAIN" /&gt; &lt;category android:name="android.intent.category.LAUNCHER" /&gt; &lt;/intent-filter&gt; &lt;/activity&gt; &lt;activity android:name=".Settings" android:label="@string/app_name" &gt; &lt;/activity&gt; &lt;/application&gt; </code></pre>
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