I took a look into @mthlifan 's issue about download error. When any download starts in the background, the application crashes. Sometimes while downloading a file too, it happens I do not understand where the problem is. Here is the log file for the exact problem -

android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application
 tat android.view.ViewRootImpl.setView(ViewRootImpl.java:566)
 tat android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:282)
 tat android.view.WindowManagerImpl.addView(WindowManagerImpl.java:85)
 tat android.app.Dialog.show(Dialog.java:298)
 tat io.github.mthli.ninja.Browser.NinjaDownloadListener.onDownloadStart(NinjaDownloadListener.java:35)
 tat com.android.webview.chromium.WebViewContentsClientAdapter.onDownloadStart(WebViewContentsClientAdapter.java:876)
 tat com.android.org.chromium.android_webview.AwContentsClientCallbackHelper$MyHandler.handleMessage(AwContentsClientCallbackHelper.java:112)
 tat android.os.Handler.dispatchMessage(Handler.java:102)
 tat android.os.Looper.loop(Looper.java:135)
 tat android.app.ActivityThread.main(ActivityThread.java:5347)
 tat java.lang.reflect.Method.invoke(Native Method)
 tat java.lang.reflect.Method.invoke(Method.java:372)
 tat com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904)
 tat com.android.internal.os.ZygoteInit.main(ZygoteInit.java:699)

I am not sure how Android handles this, but basically the following two examples are not identical:

    <string name="app_version">
        1.3.2
    </string>

    <string name="app_version">1.3.2</string>

The first one includes whitespaces and new lines.

Nice browser! I'm a fan. Can you add a forward button please? so that you can navigate to pages where you have been before and just press forward to go there again after pressing back.

If you want, I can help you add ACRA, which will send you log report when the application crashes, all I need is your Skype or something so we can talk and I can send you the code.

When you open link from google play store, it has a redirect url instead of direct link to website. So the browser performs a google search instead of opening the website. You can try it on Android 5.0 and above.

As per README, an icon was requested and this was what I came up with. The icon was made based on Google's design specs at http://www.google.com/design/spec/style/icons.html#icons-product-icons

While in discussion, the icon is under CC-BY-NC-SA 3.0 License. Own work. AI and PNG only.

More of a UX issue then a bug, but here it goes.

When tapping the back button, the Toast notification shows with string toast_double_taps_quit ("Press again to exit", in EN). This uses the NinjaToast class, which has its delay set to 2000 ms. However, the Timer you are using to expire the double-taps in method doubleTapsQuit() is using DOUBLE_TAPS_QUIT_DEFAULT as its delay, which is set to 512 ms. Therefore, when the user press the back button multiple times but with intervals longer then 512 ms, the Toast keeps showing but the app never exits.

A simple fix would be to set DOUBLE_TAPS_QUIT_DEFAULT to 2000 ms, the same duration of the Toast, so that the user expectations are met (that is, while "Press again to exit" is showing, he can press again and the app will exit).

\?\D:\Browser\app\build\intermediates\instant-run-support\debug\dependencies\AndroidManifest.xml:2: error: Error: No resource found that matches the given name (at 'versionName' with value '@string/app_version').

Error while generating dependencies split APK com.android.ide.common.process.ProcessException: Failed to execute aapt at com.android.builder.core.AndroidBuilder.processResources(AndroidBuilder.java:867) at com.android.build.gradle.internal.transforms.InstantRunSplitApkBuilder.generateSplitApkManifest(InstantRunSplitApkBuilder.java:229) at com.android.build.gradle.internal.transforms.InstantRunSplitApkBuilder.generateSplitApk(InstantRunSplitApkBuilder.java:147) at com.android.build.gradle.internal.transforms.InstantRunDependenciesApkBuilder.transform(InstantRunDependenciesApkBuilder.java:126) at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:185) at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:181) at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:102) at com.android.build.gradle.internal.pipeline.TransformTask.transform(TransformTask.java:176) at sun.reflect.GeneratedMethodAccessor345.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:73) at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$IncrementalTaskAction.doExecute(DefaultTaskClassInfoStore.java:163) at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$StandardTaskAction.execute(DefaultTaskClassInfoStore.java:134) at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$StandardTaskAction.execute(DefaultTaskClassInfoStore.java:123) at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:95) at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:76) at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:55) at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:62) at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58) at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:88) at org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter.execute(ResolveTaskArtifactStateTaskExecuter.java:46) at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:51) at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:54) at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43) at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:34) at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker$1.execute(DefaultTaskGraphExecuter.java:236) at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker$1.execute(DefaultTaskGraphExecuter.java:228) at org.gradle.internal.Transformers$4.transform(Transformers.java:169) at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:106) at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:61) at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:228) at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:215) at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:77) at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:58) at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54) at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Caused by: java.util.concurrent.ExecutionException: com.android.ide.common.process.ProcessException: Error while executing process D:\adt-bundle-windows-x86_64-20140321\sdk\build-tools\25.0.3\aapt.exe with arguments {package -f --no-crunch -I D:\adt-bundle-windows-x86_64-20140321\sdk\platforms\android-22\android.jar -M \?\D:\Browser\app\build\intermediates\instant-run-support\debug\dependencies\AndroidManifest.xml -F D:\Browser\app\build\intermediates\instant-run-support\debug\dependencies\resources_ap --debug-mode -0 apk --no-version-vectors} at com.google.common.util.concurrent.AbstractFuture$Sync.getValue(AbstractFuture.java:299) at com.google.common.util.concurrent.AbstractFuture$Sync.get(AbstractFuture.java:286) at com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:116) at com.android.builder.core.AndroidBuilder.processResources(AndroidBuilder.java:865) ... 39 more Caused by: com.android.ide.common.process.ProcessException: Error while executing process D:\adt-bundle-windows-x86_64-20140321\sdk\build-tools\25.0.3\aapt.exe with arguments {package -f --no-crunch -I D:\adt-bundle-windows-x86_64-20140321\sdk\platforms\android-22\android.jar -M \?\D:\Browser\app\build\intermediates\instant-run-support\debug\dependencies\AndroidManifest.xml -F D:\Browser\app\build\intermediates\instant-run-support\debug\dependencies\resources_ap --debug-mode -0 apk --no-version-vectors} at com.android.build.gradle.internal.process.GradleProcessResult.buildProcessException(GradleProcessResult.java:74) at com.android.build.gradle.internal.process.GradleProcessResult.assertNormalExitValue(GradleProcessResult.java:49) at com.android.builder.internal.aapt.AbstractProcessExecutionAapt$1.onSuccess(AbstractProcessExecutionAapt.java:78) at com.android.builder.internal.aapt.AbstractProcessExecutionAapt$1.onSuccess(AbstractProcessExecutionAapt.java:74) at com.google.common.util.concurrent.Futures$6.run(Futures.java:1319) at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:457) at com.google.common.util.concurrent.ExecutionList.executeListener(ExecutionList.java:156) at com.google.common.util.concurrent.ExecutionList.execute(ExecutionList.java:145) at com.google.common.util.concurrent.AbstractFuture.set(AbstractFuture.java:185) at com.google.common.util.concurrent.SettableFuture.set(SettableFuture.java:53) at com.android.build.gradle.internal.process.GradleProcessExecutor$1.run(GradleProcessExecutor.java:60) Caused by: org.gradle.process.internal.ExecException: Process 'command 'D:\adt-bundle-windows-x86_64-20140321\sdk\build-tools\25.0.3\aapt.exe'' finished with non-zero exit value 1 at org.gradle.process.internal.DefaultExecHandle$ExecResultImpl.assertNormalExitValue(DefaultExecHandle.java:369) at com.android.build.gradle.internal.process.GradleProcessResult.assertNormalExitValue(GradleProcessResult.java:47) ... 9 more

FAILED

当运行到真机上面，就会出来这个错？为什么？

When you open a link from Google News App, it has a redirect url instead of direct link to website. So the browser performs a google search instead of opening the website.