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我試圖刪除我的活動作爲默認啓動器。我跟着這個link但得到錯誤。以下是我的代碼和錯誤：刪除作爲默認啓動器的活動
lockScreenAppActivity
@Override
protected void onResume() {
ComponentName componentName = new ComponentName(LockScreenAppActivity.this,LockScreenAppActivity.class);
if (!isMyLauncherDefault()) {
Log.e("heloooo", "MyActivity is not default home activity!");
// toggle fake activity
PackageManager pm = getPackageManager();
int flag = ((pm.getComponentEnabledSetting(componentName) == PackageManager.COMPONENT_ENABLED_STATE_ENABLED) ? PackageManager.COMPONENT_ENABLED_STATE_DISABLED
: PackageManager.COMPONENT_ENABLED_STATE_ENABLED);
pm.setComponentEnabledSetting(componentName, flag, PackageManager.DONT_KILL_APP);
// start home activity to enable chooser
Intent selector = new Intent(Intent.ACTION_MAIN);
selector.addCategory(Intent.CATEGORY_HOME);
startActivity(selector);
}
super.onResume();
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if ((keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) || (keyCode == KeyEvent.KEYCODE_POWER) || (keyCode == KeyEvent.KEYCODE_VOLUME_UP) || (keyCode == KeyEvent.KEYCODE_CAMERA)) {
//this is where I can do my stuff
return true; //because I handled the event
}
if ((keyCode == KeyEvent.KEYCODE_HOME)) {
return true;
}
return false;
}
public boolean dispatchKeyEvent(KeyEvent event) {
if (event.getKeyCode() == KeyEvent.KEYCODE_POWER || (event.getKeyCode() == KeyEvent.KEYCODE_VOLUME_DOWN) || (event.getKeyCode() == KeyEvent.KEYCODE_POWER)) {
//Intent i = new Intent(this, NewActivity.class);
//startActivity(i);
return false;
}
if ((event.getKeyCode() == KeyEvent.KEYCODE_HOME)) {
System.out.println("alokkkkkkkkkkkkkkkkk");
return true;
}
return false;
}
boolean isMyLauncherDefault() {
final IntentFilter filter = new IntentFilter(Intent.ACTION_MAIN);
filter.addCategory(Intent.CATEGORY_HOME);
List<IntentFilter> filters = new ArrayList<IntentFilter>();
filters.add(filter);
final String myPackageName = getPackageName();
List<ComponentName> activities = new ArrayList<ComponentName>();
final PackageManager packageManager = (PackageManager) getPackageManager();
// You can use name of your package here as third argument
packageManager.getPreferredActivities(filters, activities, null);
for (ComponentName activity : activities) {
if (myPackageName.equals(activity.getPackageName())) {
return true;
}
}
return false;
}
}
錯誤
Launching application: com.example.home.lockscreenapp/com.example.home.lockscreenapp.LockScreenAppActivity. DEVICE SHELL COMMAND: am start -n "com.example.home.lockscreenapp/com.example.home.lockscreenapp.LockScreenAppActivity" -a android.intent.action.MAIN -c android.intent.category.LAUNCHER WARNING: linker: libvc1dec_sa.ca7.so has text relocations. This is wasting memory and is a security risk. Please fix. WARNING: linker: libvc1dec_sa.ca7.so has text relocations. This is wasting memory and is a security risk. Please fix. Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] cmp=com.example.home.lockscreenapp/.LockScreenAppActivity } Error type 3 Error: Activity class {com.example.home.lockscreenapp/com.example.home.lockscreenapp.LockScreenAppActivity} does not exist.
menifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.home.lockscreenapp"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="8" />
<uses-permission android:name="android.permission.DISABLE_KEYGUARD" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<android:uses-permission
android:name="android.permission.WRITE_EXTERNAL_STORAGE"
android:maxSdkVersion="18" />
<android:uses-permission
android:name="android.permission.READ_EXTERNAL_STORAGE"
android:maxSdkVersion="18" />
<application
android:icon="@drawable/lockicon"
android:label="@string/app_name" >
<activity
android:name=".LockScreenAppActivity"
android:label="@string/app_name"
android:launchMode="singleTask"
android:screenOrientation="portrait"
android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<!-- The following two intent-filters are the key to set homescreen -->
<category android:name="android.intent.category.HOME" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".StartLockScreen"
android:theme="@style/Theme.Transparent" >
<!--
<intent-filter >
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
<category android:name="android.intent.category.HOME" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
-->
</activity>
<service android:name=".MyService" >
</service>
<receiver
android:name="reciever.lockScreenReeiver"
android:enabled="true" >
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
<activity
android:name=".MainActivity"
android:label="@string/title_activity_main" >
</activity>
</application>
</manifest>