android-intent

问题 I wanted to collect log for every event which occurs in android device like when user starts any application or when any application have notification for user. Currently I have broadcast receiver listening for every event but it did not listened to certain events, so I searched on internet and it suggested to give priority to events while registering then in manifest file. Now the question is should I give priority to every event and if yes what priority should I give them. Thanks. 回答1:

问题 I have an already existing sqlite database in a folder /sdcard/myfolder/db/mydb.db . My app shows a dialog to choose a folder: Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT_TREE); startActivityForResult(intent, 42); The Dialog pops up and I can choose the folder: I choose the folder /sdcard/myfolder/db/ and press choose/ok. My onActivityResult gets called. I go through all files and if the file is my "mydb.db" then I try to open the sqlite database with SQLiteDatabase.openDatabase();

问题 I am implementing an Android app that will allow users to purchase something by dialing a number from my app pressing a button. In single SIM devices it works nicely, but in dual sim devices, when I run my app and click on the "Purchase Button" a popup window automatically opens to ask me which SIM I want to use to dial (I didn't have to write code for this action, It automatically done by my device. Also when I normally call a friend using the default Phone App of my device this pop up

问题 in my application I achieved the resul that my app is one of the Home Activity that start when my tablet start. The code in the android Manifest is the Following: <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.HOME" /> <category android:name="android.intent.category.DEFAULT" /> The result that i want to achieve is that the user cannot choose if the first activity to start should be the mine activity or the default home activity. I would to

问题 I am working on an Android project in which I am using drawer for showing some always used activities. I have made sure that the activities dont need any special data, and can be started once logged in. But I dont know how to include the drawer in all XML files where I have my activities. I cannot find any good reference. Also, When I do that, how can i start the activity instead of using fragments. So, for example, below is an example of my RestaurantLists xml file and displaying users xml

问题 In my app, I am changing the brightness of an image within an ImageView in Activity B and I'm passing the image as well as the brightness changed to Activity A. But when recieving the result in Activity A, I get a NullPointerException. Here is part of code in Activity A: On a button click: btn_Edit.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Intent editIntent = new Intent(HowItWorksActivity.this, EditPhotoActivity.class); if (current_working_image

问题 In my app, I am changing the brightness of an image within an ImageView in Activity B and I'm passing the image as well as the brightness changed to Activity A. But when recieving the result in Activity A, I get a NullPointerException. Here is part of code in Activity A: On a button click: btn_Edit.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Intent editIntent = new Intent(HowItWorksActivity.this, EditPhotoActivity.class); if (current_working_image

问题 Here is the first page that contents fragment activity_fpage.xml <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" > <ImageView

问题 I have an app with several activities, they all have a launch intent-filter in the manifest so they can show several icons on the launcher, there is a main activity and the rest of them are disabled by default with android:enabled="false" here is a part of my manifest: <activity android:name="com.myapp.MainActivity" android:icon="@mipmap/ic_launcher" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent

问题 I want to share image and text on pinterest using intent. Any ideas? 回答1: You have to first check pintrest application is installed into device or not using this function. private boolean appInstalledOrNot(String uri) { PackageManager pm = getPackageManager(); boolean app_installed; try { pm.getPackageInfo(uri, PackageManager.GET_ACTIVITIES); app_installed = true; } catch (PackageManager.NameNotFoundException e) { app_installed = false; } return app_installed; } If this function returns you