public void ProgressBarNotification() {
mNotifyManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
mBuilder = new NotificationCompat.Builder(ImageUploadActivity.this);
mBuilder.setContentTitle("Upload")
.setContentText("Upload in progress")
.setSmallIcon(R.drawable.ic_launcher);
// mBuilder.setAutoCancel(true);
Intent myIntent = new Intent(this, ImageUploadActivity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(ImageUploadActivity.this, 0, myIntent, Intent.FILL_IN_ACTION);
mBuilder.setContentIntent(pendingIntent);
}
在onNewIntenet方法中将加载第二个活动(ImageUploadActivity)及其方法initiatepopupwindow(),第二个活动将被加载,即使应用程序已完全最小化。所有这些都正常工作。
@Override
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
new Intent(this, ImageUploadActivity.class);
initiatePopupWindow();
Toast.makeText(getApplicationContext(),
"Upload ", Toast.LENGTH_SHORT).show();
}
我的问题是当我在第一个活动(MainActivity)时,当我点击通知进度条时,应用程序将崩溃并显示空指针异常。我知道问题是第二个活动被杀死了所以挂起的意图没有传递给调用第二个活动及其方法。但是 我需要的是,我想在用户点击通知进度时加载第二个活动,我该如何解决这个问题,有人能帮忙吗?
logcat的
07-03 11:06:20.595 31761-31761/? E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.jbn.user.imagegallerydemo/com.jbn.user.imagegallerydemo.ImageUploadActivity}: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2110)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2135)
at android.app.ActivityThread.access$700(ActivityThread.java:140)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1237)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4921)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1027)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:794)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at com.jbn.user.imagegallerydemo.ImageUploadActivity.onCreate(ImageUploadActivity.java:117)
at android.app.Activity.performCreate(Activity.java:5206)
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1094)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2074)
答案 0 :(得分:0)
尝试替换
Intent.FILL_IN_ACTION
使用
PendingIntent.FLAG_UPDATE_CURRENT
根据文件
此标志表示如果已经描述了PendingIntent 存在,然后保留它,但用它中的内容替换它的额外数据 新的意图。