android-intent

问题 I am working on an Android application that is already successfully sharing a generated PDF file via Bluetooth using the following method: public static void sharePdfFile(Context ctx, String pathAndFile) { try { Intent share = new Intent(Intent.ACTION_SEND); share.setPackage("com.android.bluetooth"); share.setType("application/pdf"); share.putExtra(Intent.EXTRA_STREAM, Uri.parse(pathAndFile)); share.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); ctx.startActivity(share); } catch (Exception e) {

问题 I am working on an Android application that is already successfully sharing a generated PDF file via Bluetooth using the following method: public static void sharePdfFile(Context ctx, String pathAndFile) { try { Intent share = new Intent(Intent.ACTION_SEND); share.setPackage("com.android.bluetooth"); share.setType("application/pdf"); share.putExtra(Intent.EXTRA_STREAM, Uri.parse(pathAndFile)); share.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); ctx.startActivity(share); } catch (Exception e) {

问题 I've been trying to use the Android Documentation to determine how to start an activity with putExtra. My putExtra value is of type String and I've tried numerous combinations of "true", "1", putting the string in quotes. I've tried switching the flags to "-n", "-a", etc... Can somebody point out what I'm doing wrong here? I've ready many other articles but they are usually for some built in intent. I'm starting my own custom intent. Starting an intent with a string key. -e|--es <EXTRA_KEY>

问题 I tried to start an Activity and close other in my AsyncTask class ( onPostExecute() ). My code : Intent i = new Intent(parentActivity, ThunderHunter.class); c.startActivity(i); parentActivity.finish(); But it doesn't work, logcat shows : 08-01 18:01:27.640: E/AndroidRuntime(12398): android.util.AndroidRuntimeException: Calling startActivity() from outside of an Activity context requires the FLAG_ACTIVITY_NEW_TASK flag. Is this really what you want? 08-01 18:01:27.640: E/AndroidRuntime(12398)

问题 How do I open another app in a split screen in the android N (SDK 24)? In the documentation I found this: Launch New Activities in Multi-Window Mode When you launch a new activity, you can hint to the system that the new activity should be displayed adjacent to the current one, if possible. To do this, use the flag Intent.FLAG_ACTIVITY_LAUNCH_TO_ADJACENT. Passing this flag requests the following behaviour: If the device is in split-screen mode, the system attempts to create the new activity

问题 How do I open another app in a split screen in the android N (SDK 24)? In the documentation I found this: Launch New Activities in Multi-Window Mode When you launch a new activity, you can hint to the system that the new activity should be displayed adjacent to the current one, if possible. To do this, use the flag Intent.FLAG_ACTIVITY_LAUNCH_TO_ADJACENT. Passing this flag requests the following behaviour: If the device is in split-screen mode, the system attempts to create the new activity

问题 My grammar can run at android 5.1 but is not working at android 7.1.... File file = new File(Environment.getExternalStorageDirectory(), "Pictures/1481853170451.jpg"); Toast.makeText(MainActivity.this, file.getPath(), Toast.LENGTH_LONG).show(); Uri path = Uri.fromFile(file); if (file.exists()) { Intent intent = new Intent(); intent.setAction(android.content.Intent.ACTION_VIEW); intent.setDataAndType(path, "image/*"); intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); try { this.startActivity

问题 My grammar can run at android 5.1 but is not working at android 7.1.... File file = new File(Environment.getExternalStorageDirectory(), "Pictures/1481853170451.jpg"); Toast.makeText(MainActivity.this, file.getPath(), Toast.LENGTH_LONG).show(); Uri path = Uri.fromFile(file); if (file.exists()) { Intent intent = new Intent(); intent.setAction(android.content.Intent.ACTION_VIEW); intent.setDataAndType(path, "image/*"); intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); try { this.startActivity

问题 I want to create notification that when it clicked will bring my app to front but without changing (reload or navigate out) the last activity that was shown. I tried: setContentIntent(PendingIntent.getActivity(context, 0, new Intent(context, MainActivity.class), Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT)) But in the new Android 4.3 the application brought to front, but its also start a new instance of MainActivity , and I don't want this. I want that my app will continue from the last activity

问题 fun launchNextScreen(context: Context, people: People): Intent { val intent = Intent(context, NextScreenActivity::class.java) intent.putExtra(EXTRA_PEOPLE, (Parcelable) people) //intent.putExtra(EXTRA_PEOPLE, people as Parcelable) //intent.putExtra(EXTRA_PEOPLE, people) // tried above all three ways return intent } I tried the above code to pass an instance of the People class via intent using kotlin, but I am getting an error. What am I doing wrong? 回答1: First, make sure the People class