Question

i am developing app which check whether user has selected any screen lock pattern or not .

if not i will call the intent to start activity to set the password then continue the app

so that i ask user to set the screen lock first by calling the

    Intent intent =
new Intent(DevicePolicyManager.ACTION_SET_NEW_PASSWORD);

startActivity(intent);

Answer 1

Use DevicePolicyManager.isActivePasswordSufficient to check whether password is set or not.

You need to call DevicePolicyManager.setPasswordQuality and

DevicePolicyManager.setPasswordMinimumLength

before calling this function

Edit: Here’s the code.

Suppose you want the user to have any password to be set then use below code.

DevicePolicyManager  mDPM = DevicePolicyManager.getSystemService(Context.DEVICE_POLICY_SERVICE); mDeviceAdminSample = new ComponentName(ControllerActivity.this, DeviceAdminSample.class);

mDPM.setPasswordQuality(mDeviceAdminSample, DevicePolicyManager.PASSWORD_QUALITY_SOMETHING );
if(!mDPM.isActivePasswordSufficient()){
    Intent intent = new Intent(DevicePolicyManager.ACTION_SET_NEW_PASSWORD);
    startActivity(intent); 
}

Ofcourse you will have to have all the permissions related to device policy manager