Android Open Source - LockscreenLocker Main Activity

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From Project

Back to project page LockscreenLocker.

License

The source code is released under:

Apache License

Java Source Code

/***
  Copyright (c) 2012 CommonsWare, LLC/*from w w  w .  j  av a  2s.c  om*/
  Licensed under the Apache License, Version 2.0 (the "License"); you may not
  use this file except in compliance with the License. You may obtain a copy
  of the License at http://www.apache.org/licenses/LICENSE-2.0. Unless required
  by applicable law or agreed to in writing, software distributed under the
  License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS
  OF ANY KIND, either express or implied. See the License for the specific
  language governing permissions and limitations under the License.
 */

package com.commonsware.lockscreenlocker;

import android.app.Activity;
import android.app.admin.DevicePolicyManager;
import android.content.ComponentName;
import android.content.Intent;
import android.os.Bundle;
import android.provider.Settings;
import android.view.View;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;

public class MainActivity extends Activity implements
    OnCheckedChangeListener {
  private DevicePolicyManager mgr=null;
  private CompoundButton camera=null;
  private CompoundButton widgets=null;
  private ComponentName cn=null;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    mgr=(DevicePolicyManager)getSystemService(DEVICE_POLICY_SERVICE);
    cn=new ComponentName(this, LockscreenAdminReceiver.class);

    camera=(CompoundButton)findViewById(R.id.camera);
    camera.setOnCheckedChangeListener(this);

    widgets=(CompoundButton)findViewById(R.id.widgets);
    widgets.setOnCheckedChangeListener(this);
  }

  @Override
  public void onResume() {
    super.onResume();

    if (mgr.isAdminActive(cn)) {
      toggleWidgets(true);

      int status=mgr.getKeyguardDisabledFeatures(cn);

      camera.setChecked(!((status & DevicePolicyManager.KEYGUARD_DISABLE_SECURE_CAMERA) == DevicePolicyManager.KEYGUARD_DISABLE_SECURE_CAMERA));
      widgets.setChecked(!((status & DevicePolicyManager.KEYGUARD_DISABLE_WIDGETS_ALL) == DevicePolicyManager.KEYGUARD_DISABLE_WIDGETS_ALL));
    }
    else {
      toggleWidgets(false);
    }
  }

  @Override
  public void onCheckedChanged(CompoundButton buttonView,
                               boolean isChecked) {
    int status=mgr.getKeyguardDisabledFeatures(cn);

    if (buttonView == camera) {
      if (isChecked) {
        mgr.setKeyguardDisabledFeatures(cn, status
            & ~DevicePolicyManager.KEYGUARD_DISABLE_SECURE_CAMERA);
      }
      else {
        mgr.setKeyguardDisabledFeatures(cn, status
            | DevicePolicyManager.KEYGUARD_DISABLE_SECURE_CAMERA);
      }
    }
    else {
      if (isChecked) {
        mgr.setKeyguardDisabledFeatures(cn, status
            & ~DevicePolicyManager.KEYGUARD_DISABLE_WIDGETS_ALL);
      }
      else {
        mgr.setKeyguardDisabledFeatures(cn, status
            | DevicePolicyManager.KEYGUARD_DISABLE_WIDGETS_ALL);
      }
    }
  }

  public void showSettings(View v) {
    startActivity(new Intent(Settings.ACTION_SECURITY_SETTINGS));
  }

  private void toggleWidgets(boolean enable) {
    int visibility=(enable ? View.GONE : View.VISIBLE);

    camera.setEnabled(enable);
    widgets.setEnabled(enable);

    findViewById(R.id.divider).setVisibility(visibility);
    findViewById(R.id.setup).setVisibility(visibility);
    findViewById(R.id.setupMessage).setVisibility(visibility);
  }
}

Java Source Code List

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