Question

我的应用程序中的SharedPreferences中的checkBoxed有问题。我使用完全相同的代码五个复选框。一个复选框工作正常。现在，其他四个复选框中的三个将像第四个复选框一样。我的意思是当我检查第四个复选框并保存首选项时，其他3个复选框将与第四个相同。这是代码，其中“第四个”复选框是声音，而正常工作的复选框是建议的帖子。

SaveProfileState类

public class SaveProfileState {

    private final static String THE_RATIO="10";
    private final static String TEXT_POSTS="true";
    private final static String EVENT_POSTS="true";
    private final static String PHOTO_POSTS="true";
    private final static String SOUND="true";
    private final static String RECOMMENDED_POSTS="false";
    private SharedPreferences userPrefs;// save data on the device
    private static final String PREFS_NAME="userProfileState2";//definition for shared

    public SaveProfileState(Context context){
        userPrefs = context.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
    }
    public SaveProfileState(){
    }

    public void saveChangesState(int ratio, boolean textPosts, boolean eventPosts, boolean photoPosts, boolean sound, boolean recommendedPosts){
        SharedPreferences.Editor editor = userPrefs.edit();
        editor.putInt(THE_RATIO, ratio);
        editor.putBoolean(TEXT_POSTS, textPosts);
        editor.putBoolean(EVENT_POSTS, eventPosts);
        editor.putBoolean(PHOTO_POSTS, photoPosts);
        editor.putBoolean(SOUND, sound);
        editor.putBoolean(RECOMMENDED_POSTS, recommendedPosts);


        editor.commit();
    }

    public int getRatio(){
        return userPrefs.getInt(THE_RATIO, 0);
    }

    public boolean getTextPostsCheck(){
        return userPrefs.getBoolean(TEXT_POSTS, true);
    }

    public boolean getEventPostsCheck(){
        return userPrefs.getBoolean(EVENT_POSTS, true);
    }

    public boolean getPhotoPostsCheck(){
        return userPrefs.getBoolean(PHOTO_POSTS, true);
    }

    public boolean getSoundCheck(){
        return userPrefs.getBoolean(SOUND, true);
    }

    public boolean getRecommendedPostsCheck(){
        return userPrefs.getBoolean(RECOMMENDED_POSTS, false);
    }
}

个人资料类

 public class Profile extends AppCompatActivity {
        private SeekBar seekBar;
        private TextView textView;
        private CheckBox textPosts;
        private CheckBox eventPosts;
        private CheckBox photoPosts;
        private CheckBox sounds;
        private CheckBox recommendedPosts;
        private boolean textPost;
        private boolean eventPost;
        private boolean photoPost;
        private boolean sound;
        private boolean recommendedPost;

        private void initializeVariables() {
            seekBar = (SeekBar) findViewById(R.id.seekBar1);
            textView = (TextView) findViewById(R.id.textView1);
            textPosts = (CheckBox) findViewById(R.id.textPostsOption);
            eventPosts = (CheckBox) findViewById(R.id.eventPostsOption);
            photoPosts = (CheckBox) findViewById(R.id.photoPostsOption);
            sounds = (CheckBox) findViewById(R.id.soundOption);
            recommendedPosts = (CheckBox) findViewById(R.id.recommendedBox);
        }

        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_profile);
            initializeVariables();
            SaveProfileState sps = new SaveProfileState(this);
            textPost = sps.getTextPostsCheck();
            textPosts.setChecked(sps.getTextPostsCheck());
            eventPosts.setChecked(sps.getEventPostsCheck());
            sounds.setChecked(sps.getSoundCheck());
            photoPosts.setChecked(sps.getPhotoPostsCheck());
            recommendedPosts.setChecked(sps.getRecommendedPostsCheck());

            final Button button = (Button) findViewById(R.id.saveChanges);
            button.setOnClickListener(new View.OnClickListener() {
                public void onClick(View v) {
                    saveChanges();
                }
            });


        }       

        public void saveChanges(){
            SaveProfileState sps = new SaveProfileState(this);
            sps.saveChangesState(ratio, textPosts.isChecked(), eventPosts.isChecked(), photoPosts.isChecked(), sounds.isChecked(), recommendedPosts.isChecked());
        }      
    }

类Profile的XML

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:facebook="http://schemas.android.com/tools"
    android:id="@+id/ScrollView01"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fillViewport="true"
    android:scrollbars="none"
    android:background="@color/blue">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:paddingLeft="16dp"
        android:paddingRight="16dp"
        android:paddingBottom="16dp">

        <CheckBox
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="View only recommended Posts"
            android:id="@+id/recommendedBox"
            android:layout_below="@+id/textView1"
            android:layout_alignParentStart="true"
            android:checked="false" />

        <CheckBox
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Text Posts"
            android:id="@+id/textPostsOption"
            android:layout_below="@+id/postKinds"
            android:layout_alignStart="@+id/textView1"
            android:checked="true" />

        <CheckBox
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Event Posts"
            android:id="@+id/eventPostsOption"
            android:layout_below="@+id/textPostsOption"
            android:layout_alignStart="@+id/textPostsOption"
            android:checked="true" />

        <CheckBox
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Photo Posts"
            android:id="@+id/photoPostsOption"
            android:layout_below="@+id/eventPostsOption"
            android:layout_alignStart="@+id/eventPostsOption"
            android:checked="true" />
        <CheckBox
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Sound"
            android:id="@+id/soundOption"
            android:layout_below="@+id/photoPostsOption"
            android:layout_alignParentStart="true"
            android:checked="true" />


        <Button
            android:text="Save Changes"
            android:id="@+id/saveChanges"
            android:layout_width="120dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:gravity="center"
            android:background="@drawable/go_btn"
            android:padding="6dp"
            android:textSize="13dp"
            android:layout_marginTop="5dp"
            android:layout_below="@+id/login_button"

            />

这是一张它的样子照片：

App

我找不到问题，我发现它很奇怪，因为相同的代码适用于一个复选框而不适用于其他复选框。

Answer 1

在SaveProfileState中，在SharedPreference中保存的密钥必须是唯一的。

private final static String TEXT_POSTS="textPost";     // key 1
private final static String EVENT_POSTS="eventPost";   // key 2
private final static String PHOTO_POSTS="photoPost";   // key 3
private final static String SOUND="sound";             // key 4

基本上您将所有四种状态保存在单键中。

private final static String TEXT_POSTS="true";    // key 1
private final static String EVENT_POSTS="true";   // key 2
private final static String PHOTO_POSTS="true";   // key 3
private final static String SOUND="true";         // key 4

SharedPreferences不适用于某些复选框，但只适用于少数几个

1 个答案: