Android 系统APK-Camera 开机时自动检测摄像头,有显示,无隐藏图标
frameworks/base/services/core/java/com/android/server/am/UserController.java
检查是否有摄像头决定是否隐藏摄像头图标
private void finishUserUnlockedCompleted(UserState uss) {
++ int n = android.hardware.Camera.getNumberOfCameras();
++ if (n==0){
++ setCamera(false);
++ }else if(n>0){
++ setCamera(true);
++ }
}
设置是否显示摄像头图标(由有无摄像头决定)
++ public void setCamera(boolean state){
++ PackageManager p = mInjector.getContext().getPackageManager();
++ if(state){
++ p.setApplicationEnabledSetting("com.android.camera2", PackageManager.COMPONENT_ENABLED_STATE_ENABLED, PackageManager.DONT_KILL_APP);
++ }else{
++ p.setApplicationEnabledSetting("com.android.camera2", PackageManager.COMPONENT_ENABLED_STATE_DISABLED, ++PackageManager.DONT_KILL_APP);
++ }
++ }
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