Question

我希望能够从我的“优惠行动”中启动第二次优惠制。在第2次优惠筛选中,我喜欢使用Xml预先规定的布局。因此,我有两个问题:

How do I use an xml layout as the layout view of a Preference? How do I add this custom preference to a PreferenceActivity such that launched when tapped?

谢谢。

*EDIT对alibi的答复

我正试图从优惠屏幕上发起一项活动,宣布活动将以xml的形式展开。造成这一例外:

 04-01 19:04:37.962: ERROR/AndroidRuntime(8061): android.content.ActivityNotFoundException: Unable to find explicit activity class {com.me/CustomPrefScreen}; have you declared this activity in your AndroidManifest.xml?

* 其他最新资料。然而,如果我取代在环境中的PrefrenceScreen,以某种延长优惠,而这种优惠超越了Click(Click)的启动,那么,所有东西都会奏效。

主要优惠活动:

public class MyPreferences extends PreferenceActivity 
{
    @Override
    protected void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        addPreferencesFromResource(R.xml.settings);
    }
}

地点:xml

<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
    <PreferenceScreen  
        android:summary="my summary" 
        android:title="my title">
        <intent android:action="android.intent.action.MAIN"
                    android:targetPackage="com.me"
                    android:targetClass="CustomPrefScreen"/>
    </PreferenceScreen>

</PreferenceScreen>

主要病历

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.me"
    android:versionCode="1"
    android:versionName="1.0">
    <application 
        android:icon="@drawable/icon" 
        android:label="@string/app_name" 
        android:theme="@style/Theme.NoBackground">
        <activity 
            android:name=".MyApp"
            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=".CustomPrefScreen"
            android:label="@string/app_name">
        </activity>
        <activity 
            android:name=".MyPreferences"
            android:label="@string/app_name">
        </activity>
    </application>
    <uses-sdk android:minSdkVersion="4" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
</manifest>

Answer 1

One solution would be to extend a DialogPreference which allows the setting of a custom layout for the preference dialog. This way you have a preference listed and when you tap it, you get a dialog with your custom settings UI.

 <com.xyz.MyPreference 
           android:dialogLayout="@layout/yourlayout"
           android:dialogTitle="Dialog Title"
            android:dialogMessage="Dialog summary"
            android:key="preference_key"
            android:title="Preference Title"
            android:summary="Preference summary"
            android:defaultValue="Default Value" />

并且

class MyPreference extends DialogPreference {
// along with constructors, you will want to override
    @Override
    protected void onBindDialogView(View view) {
        super.onBindDialogView(view);
        // view is your layout expanded and added to the dialog
            // find and hang on to your views here, add click listeners etc
            // basically things you would do in onCreate
        mTextView = (TextView)view.findViewById(R.Id.mytextview);
        }

        @Override
        protected void onDialogClosed(boolean positiveResult) {
           super.onDialogClosed(positiveResult);

            if (positiveResult) {
                // deal with persisting your values here
            }
        }
}

显然还有其他细节,但这是基本的想法。

Answer 2

在<代码>targetPackage和各栏目中界定意图后,在我的试验和操作下,对我做了大量的工作。

<代码>targetPackage需要成为我申请的包裹名称(即 Pack= 输入Andreanest.xml文档)的全部途径。



申请的AndonyManifest.xml文件(当然)也需要活动条目。 I don t Defin an <intent-filter> for this entry,推定因为action/code> is MAIN (活动是否与申请相同或不同。)


例:申请表是com.thissocialworld。 活动一如欲从<代码>上删除。 缩略语Screen 载于一个名为com.coolcommon的一揽子计划,活动类别为com.thissocial.world.SpecialP参比s。 <代码><P参比Screen>内的条目如下:

<intent android:action="android.intent.action.MAIN"
 android:targetPackage="com.thissocialworld"
 android:targetClass="com.thissocialworld.SpecialPreferences"/>


我可以尝试修改<代码>。 MAIN to action. PREFERENCES  如有必要进入<代码> 缩略语

(我在这里的第一个职位,我无法说明如何将此列为对伊比拉开始的讨论的评论。)

Answer 3

你们可能想像我用快乐或照相机卸下照片那样的东西。

package com.atClass.lmt;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.ContentValues;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.preference.PreferenceActivity;
import android.preference.Preference;
import android.preference.Preference.OnPreferenceClickListener;
import android.provider.MediaStore;
import android.util.Log;


public class Prefs extends PreferenceActivity{
    //public static final int FLAG_ACTIVITY_CLEAR_TOP = 1;
    private static final int MEDIA_IMAGE_REQUEST_CODE = 1;
    private static final int CAMERA_IMAGE_REQUEST_CODE = 2;
    public static Uri cImageUri;

    public static Context cContext;
    public static Activity cActivity;

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

        this.cContext = (Context)this;
        this.cActivity = (Activity)this;

        Preference customPref = (Preference) findPreference("user_display_picture");
        customPref.setOnPreferenceClickListener(
                new OnPreferenceClickListener() {
                    public boolean onPreferenceClick(Preference preference) {
                        return imageUploadDialog();
                    }
                });
    }

    protected void onStop(){
        super.onStop();
        MapTools.createMapView(false);
        Lmt.serviceBinder.serviceThread("loginDevice");
    }

    public boolean imageUploadDialog(){
        final CharSequence[] items = {"Take picture now","Upload from gallery"};
        AlertDialog.Builder lAlertDialog = new AlertDialog.Builder(cContext);
        lAlertDialog.setTitle("Upload action");
        lAlertDialog.setCancelable(true);
        lAlertDialog.setItems(items,
                new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialogInterface, int i){
                //Toast.makeText(getApplicationContext(), "Selected item: " +i,  Toast.LENGTH_SHORT).show();
                if (i == 0){
                    attachCameraImage();
                }
                if (i == 1){
                    attachGalleryImage();
                }
            }
        });
        lAlertDialog.setIcon(R.drawable.click_to_url);
        lAlertDialog.show();
        return true;
    }

    public void attachGalleryImage(){
        Intent getImageFromGalleryIntent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.INTERNAL_CONTENT_URI);
        startActivityForResult(getImageFromGalleryIntent, MEDIA_IMAGE_REQUEST_CODE);
    }

    public void attachCameraImage(){
        String fileName = "testphoto.jpg";
        ContentValues values = new ContentValues();
        values.put(MediaStore.Images.Media.TITLE, fileName);
        values.put(MediaStore.Images.Media.DESCRIPTION,"Image capture by camera");
        values.put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg");
        cImageUri = getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        intent.putExtra(MediaStore.EXTRA_OUTPUT, cImageUri);
        intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1);
        startActivityForResult(intent, CAMERA_IMAGE_REQUEST_CODE);
    }

    protected final void onActivityResult(final int requestCode, final int resultCode, final Intent i) {
        Log.d(Global.TAG,"--> Received callback with:" + resultCode);
        super.onActivityResult(requestCode, resultCode, i);
        if(resultCode == RESULT_OK) {
            Log.d(Global.TAG,"--> Result OK with:" + requestCode);
            switch(requestCode) {
            case MEDIA_IMAGE_REQUEST_CODE:
                Log.d(Global.TAG,"--> MEDIA_IMAGE_REQUEST_CODE");
                Gui.GuiProgressDialog.showLoadingSpinner(cActivity);
                cImageUri = i.getData();
                if (cImageUri == null){Log.d(Global.TAG,"--> ImageURI is null!");}
                Lmt.serviceBinder.serviceThread("uploadMemberPicture");
                break;
            case CAMERA_IMAGE_REQUEST_CODE:
                Log.d(Global.TAG,"--> CAMERA_IMAGE_REQUEST_CODE");
                //cImageUri = i.getData();
                if (cImageUri == null){Log.d(Global.TAG,"--> ImageURI is null!");}
                Lmt.serviceBinder.serviceThread("uploadMemberPicture");
                break;
            }
        }
    }
}

Answer 4

You can use a custom activity for this. Just design the activity and include it as a PreferenceScreen in your preferences.

<PreferenceScreen  android:summary="@string/pref_summary" android:title="@string/title_summary">
  <intent android:action="android.intent.action.MAIN"
     android:targetPackage="targetPackage"
     android:targetClass="targetClass"/>
</PreferenceScreen>

Don!

友情链接