无法获取显示动态壁纸的设置按钮
我想向我创建的动态壁纸添加设置。我遗漏了有关 SharedPreferences 工作原理的一些非常基本的内容。代码和 XML 基于立方体动态壁纸示例,我无法弄清楚我做错了什么。我的问题是,当我从列表中选择动态壁纸时,没有显示“设置”按钮。仅显示“设置壁纸”按钮。我怀疑我搞砸了 XML 中的某些内容。
这是一个非常简单的动态壁纸,我只是为了摆弄设置而制作的。它所做的只是将背景设置为蓝色或绿色(并且该部分有效)。
我认为相关的代码和xml如下:
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.android.BGWallpaper"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="7" />
<uses-feature android:name="android.software.live_wallpaper" />
<application
android:icon="@drawable/icon" android:label="@string/AppName">
<service
android:icon="@drawable/icon"
android:label="@string/AppName"
android:name="com.android.BGWallpaper.BlueGreen"
android:permission="android.permission.BIND_WALLPAPER" android:debuggable="false">
<intent-filter android:priority="1">
<action android:name="android.service.wallpaper.WallpaperService" />
</intent-filter>
<meta-data android:name="android.service.wallpaper" android:resource="@xml/bg" />
</service>
<activity
android:label="BGSettings"
android:name="com.android.BGWallpaper.BGPrefs"
android:theme="@android:style/Theme.Light.WallpaperSettings"
android:exported="true">
</activity>
</application>
</manifest>
Preferences.xml:
<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
android:title="Title Preference"
android:key="BGSettings">
<ListPreference
android:key="background"
android:title="Background Title"
android:summary="Background Summary"
android:entries="@array/BackgroundChoices"
android:entryValues="@array/BackgroundChoices" />
</PreferenceScreen>
bg.xml
<?xml version="1.0" encoding="utf-8"?>
<wallpaper
xmlns:android="http://schemas.android.com/apk/res/android"
android:thumbnail="@drawable/icon"/>
BlueGreen.java(壁纸服务)
public class BlueGreen extends WallpaperService
{
public static final String strSharedPrefs="BGSettings";
@Override
public Engine onCreateEngine()
{
return new BGEngine();
}
class BGEngine extends Engine implements SharedPreferences.OnSharedPreferenceChangeListener
{
private SharedPreferences msPrefs;
private final Runnable mDraw = new Runnable()
{
public void run()
{
draw();
}
};
BGEngine()
{
msPrefs = BlueGreen.this.getSharedPreferences(strSharedPrefs, MODE_PRIVATE);
msPrefs.registerOnSharedPreferenceChangeListener(this);
onSharedPreferenceChanged(msPrefs, null);
}
}
// ...
}
BGPrefs.java:
public class BGPrefs extends PreferenceActivity implements SharedPreferences.OnSharedPreferenceChangeListener
{
@Override
protected void onCreate(Bundle icicle)
{
super.onCreate(icicle);
getPreferenceManager().setSharedPreferencesName(BlueGreen.strSharedPrefs);
addPreferencesFromResource(R.xml.preferences);
getPreferenceManager().getSharedPreferences().registerOnSharedPreferenceChangeListener(this);
}
// ...
}
那么我错过了什么?
另外,我的 XML/代码的一部分被自动格式化所吞噬。有没有办法让它将文本块视为文字,这样就不会格式化它?
I want to add settings to a live wallpaper I created. I am missing something very fundamental about how SharedPreferences work. The code and XML are based on the cube live wallpaper example and I can’t figure out what I did wrong. My problem is that no "Settings" button shows up when I choose my live wallpaper from the list. Only the "Set Wallpaper" button is displayed. I suspect that I screwed up something in the XML.
This is a very simple live wallpaper I made just to fool around with settings. All it does is set the background to either blue or green (and that part works).
What I believe to be the pertinent code and xml follows:
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.android.BGWallpaper"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="7" />
<uses-feature android:name="android.software.live_wallpaper" />
<application
android:icon="@drawable/icon" android:label="@string/AppName">
<service
android:icon="@drawable/icon"
android:label="@string/AppName"
android:name="com.android.BGWallpaper.BlueGreen"
android:permission="android.permission.BIND_WALLPAPER" android:debuggable="false">
<intent-filter android:priority="1">
<action android:name="android.service.wallpaper.WallpaperService" />
</intent-filter>
<meta-data android:name="android.service.wallpaper" android:resource="@xml/bg" />
</service>
<activity
android:label="BGSettings"
android:name="com.android.BGWallpaper.BGPrefs"
android:theme="@android:style/Theme.Light.WallpaperSettings"
android:exported="true">
</activity>
</application>
</manifest>
Preferences.xml:
<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
android:title="Title Preference"
android:key="BGSettings">
<ListPreference
android:key="background"
android:title="Background Title"
android:summary="Background Summary"
android:entries="@array/BackgroundChoices"
android:entryValues="@array/BackgroundChoices" />
</PreferenceScreen>
bg.xml
<?xml version="1.0" encoding="utf-8"?>
<wallpaper
xmlns:android="http://schemas.android.com/apk/res/android"
android:thumbnail="@drawable/icon"/>
BlueGreen.java (the wallpaper service)
public class BlueGreen extends WallpaperService
{
public static final String strSharedPrefs="BGSettings";
@Override
public Engine onCreateEngine()
{
return new BGEngine();
}
class BGEngine extends Engine implements SharedPreferences.OnSharedPreferenceChangeListener
{
private SharedPreferences msPrefs;
private final Runnable mDraw = new Runnable()
{
public void run()
{
draw();
}
};
BGEngine()
{
msPrefs = BlueGreen.this.getSharedPreferences(strSharedPrefs, MODE_PRIVATE);
msPrefs.registerOnSharedPreferenceChangeListener(this);
onSharedPreferenceChanged(msPrefs, null);
}
}
// ...
}
BGPrefs.java:
public class BGPrefs extends PreferenceActivity implements SharedPreferences.OnSharedPreferenceChangeListener
{
@Override
protected void onCreate(Bundle icicle)
{
super.onCreate(icicle);
getPreferenceManager().setSharedPreferencesName(BlueGreen.strSharedPrefs);
addPreferencesFromResource(R.xml.preferences);
getPreferenceManager().getSharedPreferences().registerOnSharedPreferenceChangeListener(this);
}
// ...
}
So what am I missing?
Also, part of my XML/code is being eaten by the automatic formatting. Is there a way to have it treat a block of text as literal so it doesn't format it?
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在您的 bg.xml 中...
android:settingsActivity 是您需要针对动态壁纸 XML 文件设置的参数。
祝你好运 :)
In your bg.xml...
android:settingsActivity is the param that you need to set against your live wallpaper XML file.
Good luck :)