[如何避免在切换 activity 时黑屏？而在 service 中 start activity 无法调用 overridePendingTransition] #tags: android-activity

avoid_black_screen.diff

weiyiWorkCell:DVR weiyi$ git diff
diff --git a/app/src/main/java/com/magellan/dvr/activity/WarningsActivity.java b/app/src/main/java/com/magellan/dvr/activity/WarningsActivity.java
index 63b8869..7813fb5 100644
--- a/app/src/main/java/com/magellan/dvr/activity/WarningsActivity.java
+++ b/app/src/main/java/com/magellan/dvr/activity/WarningsActivity.java
@@ -47,6 +47,7 @@ public class WarningsActivity extends Activity {
     protected void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
+        getWindow().setWindowAnimations(0);
 
         Intent intent = getIntent();
 
@@ -142,6 +143,7 @@ public class WarningsActivity extends Activity {
         Intent intent = new Intent(context, WarningsActivity.class);
         intent.putExtra(WarningsActivity.EXTRA_WARNING_TYPE, type);
         intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
 
         if (type == WarningType.SDCARD_EJECTED || type == WarningType.SDCARD_FULL
                 || type == WarningType.SDCARD_MEDIA_ERROR || type == WarningType.SDCARD_NO_INSERTED) {
diff --git a/app/src/main/java/com/magellan/dvr/service/DvrService.java b/app/src/main/java/com/magellan/dvr/service/DvrService.java
index 98ef946..a02977d 100644
--- a/app/src/main/java/com/magellan/dvr/service/DvrService.java
+++ b/app/src/main/java/com/magellan/dvr/service/DvrService.java
@@ -596,7 +596,8 @@ public class DvrService extends Service {
 
                         case SDCARD_EJECTED:
                             NavigationIntent.send(mAppContext, NotifyType.SDCARD_EJECTED);
-                            startWarningsActivity(WarningType.SDCARD_EJECTED);
+                            //startWarningsActivity(WarningType.SDCARD_EJECTED);
+                            WarningsActivity.start(mAppContext, WarningType.SDCARD_EJECTED);
                             break;
 
                         case SDCARD_ERROR:
diff --git a/app/src/main/res/values-v14/styles.xml b/app/src/main/res/values-v14/styles.xml
index 713435d..b3777b9 100644
--- a/app/src/main/res/values-v14/styles.xml
+++ b/app/src/main/res/values-v14/styles.xml
@@ -1,5 +1,11 @@
 <resources>
 
-    <style name="Dvr.DialogActivity" parent="@android:style/Theme.Holo.Light.Dialog"/>
+    <style name="Dvr.DialogActivity" parent="@android:style/Theme.Holo.Light.Dialog">
+        <item name="android:windowNoTitle">true</item>
+        <item name="android:windowBackground">@android:color/transparent</item>
+        <item name="android:colorBackgroundCacheHint">@null</item>
+        <item name="android:windowIsTranslucent">true</item>
+        <item name="android:windowAnimationStyle">@android:style/Animation</item>
+    </style>