为当前Activity创建快捷方式
private void addShortCut(){
//添加action
Intent shortcut = new Intent("com.android.launcher.action.INSTALL_SHORTCUT");
//shortcut的名字
shortcut.putExtra(Intent.EXTRA_SHORTCUT_NAME, getString(R.string.app_name));
//不允许重复添加
shortcut.putExtra("duplicate", false);
//设置shortcut的图标
Parcelable icon = Intent.ShortcutIconResource.fromContext(this,R.drawable.icon);
shortcut.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, icon);
//设置用来启动的intent
//如果用以下Intent会造成从快捷方式进入和从应用集合进入 会开启两遍SplashActivity的问题
//解决的关键在于添加Action_Main
//Intent intent = new Intent(this, SplashActivity.class);
ComponentName comp = new ComponentName(this.getPackageName(), this.getPackageName() + "." +this.getLocalClassName());
Intent intent = new Intent(Intent.ACTION_MAIN).setComponent(comp);
intent.setFlags(Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
intent.addFlags(Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
shortcut.putExtra(Intent.EXTRA_SHORTCUT_INTENT, intent);
//发送广播让Launcher接收来创建shortcut
sendBroadcast(shortcut);
}
}
判断是否已创建快捷方式
首先需要获取Launcher的授权(此处理解为系统的Launcher.settings的包名),由于安卓的碎片化，每种机型的Laucher包名可能不与官方的相同，因此用以下方法来获取
private String getAuthorityFromPermission(Context context, String permission){
if (permission == null) return null;
List<PackageInfo> packs = context.getPackageManager().getInstalledPackages(PackageManager.GET_PROVIDERS);
if (packs != null) {
for (PackageInfo pack : packs) {
ProviderInfo[] providers = pack.providers;
if (providers != null) {
for (ProviderInfo provider : providers) {
if (permission.equals(provider.readPermission)) return provider.authority;
if (permission.equals(provider.writePermission)) return provider.authority;
}
}
}
}
return null;
}
```
####然后判断是否已安装快捷方式
```java
private boolean isAddedShortCut(){
boolean isAdded = false;
//调用Activity的getContentResolver();
final ContentResolver cr = getContentResolver();
String authority = getAuthorityFromPermission(this.getApplicationContext(), "com.android.launcher.permission.READ_SETTINGS");
//默认"com.android.launcher2.settings";
final Uri contentUri = Uri.parse("content://"+authority+"/favorites?notify=true");
Cursor c = cr.query(contentUri, new String[] { "title", "iconResource" }, "title=?"
, new String[] { getString(R.string.app_name) }, null);
if(c!=null && c.getCount()>0){
isAdded = true;
}
return isAdded;
}
