Ignore first crash dialog.

By default, no longer show the crash dialog the first time an app
crashes. Instead, only multiple crashes will show by default.

Add developer setting to control behavior, so app developers can
ensure dialog always shows when a crash happens.

Bug: 63703353, 70640329
Test: robotests, manual crashing with a test app
Change-Id: I2e625ed147dafc188b28c52eb1b9cee6b2330d50

1 files changed, 94 insertions, 0 deletions

diff --git a/src/com/android/settings/development/ShowFirstCrashDialogPreferenceController.java b/src/com/android/settings/development/ShowFirstCrashDialogPreferenceController.java
new file mode 100644
index 0000000000..e1f9b3263e
--- /dev/null
+++ b/src/com/android/settings/development/ShowFirstCrashDialogPreferenceController.java
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * 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.android.settings.development;
+
+import android.content.Context;
+import android.provider.Settings;
+import android.support.annotation.VisibleForTesting;
+import android.support.v14.preference.SwitchPreference;
+import android.support.v7.preference.Preference;
+import android.support.v7.preference.PreferenceScreen;
+
+import com.android.settings.core.PreferenceControllerMixin;
+import com.android.settingslib.development.DeveloperOptionsPreferenceController;
+
+public class ShowFirstCrashDialogPreferenceController extends
+        DeveloperOptionsPreferenceController implements Preference.OnPreferenceChangeListener,
+        PreferenceControllerMixin {
+
+    private static final String SHOW_FIRST_CRASH_DIALOG_KEY = "show_first_crash_dialog";
+
+    @VisibleForTesting
+    static final int SETTING_VALUE_ON = 1;
+    @VisibleForTesting
+    static final int SETTING_VALUE_OFF = 0;
+
+    private SwitchPreference mPreference;
+
+    public ShowFirstCrashDialogPreferenceController(Context context) {
+        super(context);
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return SHOW_FIRST_CRASH_DIALOG_KEY;
+    }
+
+    @Override
+    public boolean isAvailable() {
+        // If the global setting is on, hide this preference since the global overrides
+        // any user preference.
+        return Settings.Global.getInt(mContext.getContentResolver(),
+                Settings.Global.SHOW_FIRST_CRASH_DIALOG, SETTING_VALUE_OFF) == SETTING_VALUE_OFF;
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+
+        mPreference = (SwitchPreference) screen.findPreference(getPreferenceKey());
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        final boolean isEnabled = (Boolean) newValue;
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.SHOW_FIRST_CRASH_DIALOG_DEV_OPTION,
+                isEnabled ? SETTING_VALUE_ON : SETTING_VALUE_OFF);
+        return true;
+    }
+
+    @Override
+    public void updateState(Preference preference) {
+        final int mode = Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Secure.SHOW_FIRST_CRASH_DIALOG_DEV_OPTION, SETTING_VALUE_OFF);
+        mPreference.setChecked(mode != SETTING_VALUE_OFF);
+    }
+
+    @Override
+    protected void onDeveloperOptionsSwitchEnabled() {
+        mPreference.setEnabled(true);
+    }
+
+    @Override
+    protected void onDeveloperOptionsSwitchDisabled() {
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.SHOW_FIRST_CRASH_DIALOG_DEV_OPTION, SETTING_VALUE_OFF);
+        mPreference.setEnabled(false);
+        mPreference.setChecked(false);
+    }
+}