这个是解决：开机默认状态不能卸载/安装应用，不能恢复出厂设置，
如果需要卸载/安装应用，和恢复出厂设置，则需要在设置-系统-关于平板-自定义版本点击5次，打开
输入密码28117three（弹出提示窗，请输入解锁密码），
同样自定义版本点击5次也要能关闭，也是同上步骤（弹出提示窗，请输入退出密码）
这个就是在安装或者卸载的时候去跳过那个流程
1、Settings.java
frameworks/base/core/java/android/provider/Settings.java
需要在这里加上一个属性，方便控制安装、卸载apk
@Readablepublic static final String SCREEN_BRIGHTNESS = "screen_brightness";
+
+ @Readable
+ @SuppressLint("NoSettingsProvider")
+ public static final String LOCK_INSTALL_APP = "lock_install_app";
+/*** The screen backlight brightness between 0.0f and 1.0f.
2、PackageInstallerActivity.java
frameworks/base/packages/PackageInstaller/src/com/android/packageinstaller/PackageInstallerActivity.java
这个是判断有没有权限去安装
import java.io.File;import java.util.ArrayList;import java.util.List;
-
+import android.widget.Toast;/*** This activity is launched when a new application is installed via side loading* The package is first parsed and the user is notified of parse errors via a dialog.
@@ -517,6 +517,19 @@ public class PackageInstallerActivity extends AlertActivity {* Check if it is allowed to install the package and initiate install if allowed.*/private void checkIfAllowedAndInitiateInstall() {
+
+ if (Settings.System.getInt(getContentResolver(),
+ Settings.System.LOCK_INSTALL_APP, 0) == 0){
+ Log.w(TAG, "caninstall false ="+mPkgInfo.applicationInfo.packageName);
+ if(mPkgInfo.applicationInfo.packageName != null ){
+ setPmResult(PackageManager.INSTALL_FAILED_INVALID_APK);
+ Toast.makeText(this, "install_failed", Toast.LENGTH_LONG).show();
+ finish();
+ return;
+ }
+ }
+
+ if (mAllowUnknownSources || !isInstallRequestFromUnknownSource(getIntent())) {if (mLocalLOGV) Log.i(TAG, "install allowed");initiateInstall();
// 这里就是把那个安装的流程给跳过了
3、UninstallFinish.java
frameworks/base/packages/PackageInstaller/src/com/android/packageinstaller/UninstallFinish.java
public class UninstallFinish extends BroadcastReceiver {private static final String LOG_TAG = UninstallFinish.class.getSimpleName();- private static final String UNINSTALL_FAILURE_CHANNEL = "uninstall failure";
+ static final String UNINSTALL_FAILURE_CHANNEL = "uninstall failure";static final String EXTRA_UNINSTALL_ID = "com.android.packageinstaller.extra.UNINSTALL_ID";static final String EXTRA_APP_LABEL = "com.android.packageinstaller.extra.APP_LABEL";
4、UninstallerActivity.java
frameworks/base/packages/PackageInstaller/src/com/android/packageinstaller/UninstallerActivity.java
这个是卸载的时候也是采用跳过
import com.android.packageinstaller.television.UninstallAppProgress;import java.util.List;
-
+import android.provider.Settings;/** This activity presents UI to uninstall an application. Usually launched with intent* Intent.ACTION_UNINSTALL_PKG_COMMAND and attribute
@@ -344,6 +344,27 @@ public class UninstallerActivity extends Activity {PendingIntent.getBroadcast(this, uninstallId, broadcastIntent,PendingIntent.FLAG_MUTABLE | PendingIntent.FLAG_UPDATE_CURRENT);+
+ if (Settings.System.getInt(getContentResolver(),
+ Settings.System.LOCK_INSTALL_APP, 0) == 0){
+ NotificationManager notificationManager =getSystemService(NotificationManager.class);
+
+ NotificationChannel uninstallFailureChannel = new NotificationChannel(
+ UninstallFinish.UNINSTALL_FAILURE_CHANNEL,
+ getString(R.string.uninstall_failure_notification_channel),
+ NotificationManager.IMPORTANCE_DEFAULT);
+ notificationManager.createNotificationChannel(uninstallFailureChannel);
+
+ Notification.Builder uninstallFailedNotification = new Notification.Builder(this,
+ UninstallFinish.UNINSTALL_FAILURE_CHANNEL);
+
+ uninstallFailedNotification.setContentTitle(getString(R.string.uninstall_failed_app, label));
+ uninstallFailedNotification.setOngoing(false);
+ uninstallFailedNotification.setSmallIcon(R.drawable.ic_error);
+ notificationManager.notify(uninstallId, uninstallFailedNotification.build());
+ finish();
+ return;
+ }NotificationManager notificationManager = getSystemService(NotificationManager.class);NotificationChannel uninstallingChannel = new NotificationChannel(UNINSTALLING_CHANNEL,getString(R.string.uninstalling_notification_channel),
5、defaults.xml
frameworks/base/packages/SettingsProvider/res/values/defaults.xml
这里是定义一个初始值
<integer name="def_lock_install_app">0</integer>
表示在最开始的时候也是不能安装apk和卸载apk的
6、DatabaseHelper.java
frameworks/base/packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java
初始值的设置
loadIntegerSetting(stmt, Settings.System.SCREEN_BRIGHTNESS,R.integer.def_screen_brightness);+ loadIntegerSetting(stmt, Settings.System.LOCK_INSTALL_APP,
+ R.integer.def_lock_install_app);loadBooleanSetting(stmt, Settings.System.SCREEN_BRIGHTNESS_MODE,R.bool.def_screen_brightness_automatic_mode);
7、BuildNumberPreferenceController.java
packages/apps/Settings/src/com/android/settings/deviceinfo/BuildNumberPreferenceController.java
这里是开始去点击设置的版本号
import com.android.settingslib.utils.StringUtil;import com.google.android.setupcompat.util.WizardManagerHelper;
-
+import android.content.DialogInterface;
+import androidx.appcompat.app.AlertDialog;
+import android.view.View;
+import android.view.WindowManager;
+import android.widget.EditText;
+import android.util.Log;
+import android.provider.Settings;public class BuildNumberPreferenceController extends BasePreferenceController implementsLifecycleObserver, OnStart {@@ -67,6 +73,7 @@ public class BuildNumberPreferenceController extends BasePreferenceController imprivate int mDevHitCountdown;private boolean mProcessingLastDevHit;+ private EditText editText;public BuildNumberPreferenceController(Context context, String key) {super(context, key);mUm = (UserManager) context.getSystemService(Context.USER_SERVICE);
@@ -89,8 +96,7 @@ public class BuildNumberPreferenceController extends BasePreferenceController immContext, UserManager.DISALLOW_DEBUGGING_FEATURES, UserHandle.myUserId());mDebuggingFeaturesDisallowedBySystem = RestrictedLockUtilsInternal.hasBaseUserRestriction(mContext, UserManager.DISALLOW_DEBUGGING_FEATURES, UserHandle.myUserId());
- mDevHitCountdown = DevelopmentSettingsEnabler.isDevelopmentSettingsEnabled(mContext)
- ? -1 : TAPS_TO_BE_A_DEVELOPER;
+ mDevHitCountdown = TAPS_TO_BE_A_DEVELOPER;mDevHitToast = null;}@@ -168,7 +174,8 @@ public class BuildNumberPreferenceController extends BasePreferenceController im.show();if (!mProcessingLastDevHit) {
- enableDevelopmentSettings();
+ unluckAlterDialog();
+ //enableDevelopmentSettings();}mMetricsFeatureProvider.action(mMetricsFeatureProvider.getAttribution(mActivity),
@@ -221,7 +228,8 @@ public class BuildNumberPreferenceController extends BasePreferenceController imreturn false;}if (resultCode == Activity.RESULT_OK) {
- enableDevelopmentSettings();
+ unluckAlterDialog();
+ //enableDevelopmentSettings();}mProcessingLastDevHit = false;return true;
@@ -231,7 +239,7 @@ public class BuildNumberPreferenceController extends BasePreferenceController im* Enables development settings. Only call this after confirming password.*/private void enableDevelopmentSettings() {
- mDevHitCountdown = 0;
+ mDevHitCountdown = TAPS_TO_BE_A_DEVELOPER;mProcessingLastDevHit = false;DevelopmentSettingsEnabler.setDevelopmentSettingsEnabled(mContext, true);if (mDevHitToast != null) {
@@ -248,4 +256,70 @@ public class BuildNumberPreferenceController extends BasePreferenceController improtected boolean isUserAMonkey() {return ActivityManager.isUserAMonkey();}
+
+ private void unluckAlterDialog() {
+
+ AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
+ builder.setTitle("Input lock Password");
+ builder.setNegativeButton("ok", new DialogInterface.OnClickListener() {
+ @Override
+ public void onClick(DialogInterface dialog, int which) {
+ String mPassword = editText.getText().toString();
+ if(!TextUtils.isEmpty(mPassword)) {
+ Log.d("zmz-----", "text=" + mPassword);
+ if (mPassword.equals("28117three")) {
+ if (Settings.System.getInt(mContext.getContentResolver(),
+ Settings.System.LOCK_INSTALL_APP, 0) == 0){
+ Settings.System.putInt(mContext.getContentResolver(), Settings.System.LOCK_INSTALL_APP, 1);
+ enableDevelopmentSettings();
+ if (mDevHitToast != null) {
+ mDevHitToast.cancel();
+ }
+ mDevHitToast = Toast.makeText(mContext, "unLock Password",
+ Toast.LENGTH_LONG);
+ mDevHitToast.show();
+
+ }else{
+ Settings.System.putInt(mContext.getContentResolver(), Settings.System.LOCK_INSTALL_APP, 0);
+ mDevHitCountdown = 7;
+ mProcessingLastDevHit = false;
+ DevelopmentSettingsEnabler.setDevelopmentSettingsEnabled(mContext, false);
+ if (mDevHitToast != null) {
+ mDevHitToast.cancel();
+ }
+ mDevHitToast = Toast.makeText(mContext, "Lock Password",
+ Toast.LENGTH_LONG);
+ mDevHitToast.show();
+
+ }
+
+
+ }else{
+ if (mDevHitToast != null) {
+ mDevHitToast.cancel();
+ }
+ mDevHitToast = Toast.makeText(mContext, "Password Error",
+ Toast.LENGTH_LONG);
+ mDevHitToast.show();
+ }
+ }else{
+ if (mDevHitToast != null) {
+ mDevHitToast.cancel();
+ }
+ mDevHitToast = Toast.makeText(mContext, "Password Error",
+ Toast.LENGTH_LONG);
+ mDevHitToast.show();
+ }
+ }
+ });
+ final AlertDialog dialog = builder.create();
+
+ View dialogView = View.inflate(mContext, R.layout.lock_input_password_dialog, null);
+ dialog.setView(dialogView);
+ dialog.show();
+ WindowManager.LayoutParams attrs = dialog.getWindow().getAttributes();
+ attrs.height = 310;
+ dialog.getWindow().setAttributes(attrs);
+ editText = dialog.findViewById(R.id.et_name);
+ }}
8、ResetPreferenceController.java
packages/apps/Settings/src/com/android/settings/system/ResetPreferenceController.java
import com.android.settings.R;import com.android.settings.core.BasePreferenceController;import com.android.settings.network.NetworkResetPreferenceController;
-
+import android.provider.Settings;public class ResetPreferenceController extends BasePreferenceController {private final UserManager mUm;
@@ -37,7 +37,16 @@ public class ResetPreferenceController extends BasePreferenceController {@Overridepublic int getAvailabilityStatus() {
- return mContext.getResources().getBoolean(R.bool.config_show_reset_dashboard)
- ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
+ // return mContext.getResources().getBoolean(R.bool.config_show_reset_dashboard)
+ // ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
+ /*if (Settings.System.getInt(mContext.getContentResolver(),
+ Settings.System.LOCK_INSTALL_APP, 0) == 0){
+ return UNSUPPORTED_ON_DEVICE;
+ }else{
+ return AVAILABLE;
+ }*/
+
+ return Settings.System.getInt(mContext.getContentResolver(),
+ Settings.System.LOCK_INSTALL_APP, 0) == 1 ? AVAILABLE : UNSUPPORTED_ON_DEVICE;}}
9、lock_input_password_dialog.xml
packages/apps/Settings/res/layout/lock_input_password_dialog.xml
弹窗的布局
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"><EditTextandroid:id="@+id/et_name"android:layout_width="match_parent"android:layout_height="wrap_content"android:layout_marginLeft="20dp"android:layout_marginRight="20dp"android:layout_marginTop="20dp"android:hint="Password："android:singleLine="true"android:textSize="18sp" /><LinearLayoutandroid:layout_width="match_parent"android:layout_height="wrap_content"android:layout_marginBottom="5dp"android:orientation="horizontal"android:paddingLeft="5dp"android:paddingRight="5dp"></LinearLayout>
</LinearLayout>
