android-studio

问题 I'm having some problems with the latest version of Android studio, combined with a Facebook SDK (used only for logging in) and the Google Maps API. I've set up a project in Android studio with the Facebook integration which works fine. But a colleague of mine created the Google Maps part, which I am trying to copy/paste into my project. I've set up it like the Google documentation tells me to. So that's not the problem. I am only having problems with the build.cradle from my project and

问题 I'm using fragments in my app but after some time it doesn't respond.I referred some answers for that but i cannot understand them. viewAllBtn.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { if (CheckNetworkStatus.isNetworkAvailable(mCtx.getApplicationContext())) { Intent i = new Intent(mCtx.getApplicationContext(), UsersupportlistActivity.class); startActivity(i); } 来源： https://stackoverflow.com/questions/59303498/errorattempt-to-invoke-virtual

问题 In my activity i have a bottom navigation bar and the frame layout to show the fragments everything works fine but the problem is when i start moving from 1 - 4 in sequence the bottom navigation bar stays in its position but when i jump suddenly from 4 to 2 then the bottom navigation bar goes out of screen and when again clicked on the same item then it comes to normal position. This video will clearly help you get what my problem is Click to watch. as i guess this is a major problem when

问题 I want to create an expandable listview that gets data from a table in Sqlite Database. The table is Named as Consumer table. I want the Account Number and Consumer Name to be the Parent. I've watched lots of tutorials but all data are static and not from Sqlite Database. can someone help me with this? thank you.. 来源： https://stackoverflow.com/questions/59780122/expandable-listview-with-sqlite-data

问题 I want to create an expandable listview that gets data from a table in Sqlite Database. The table is Named as Consumer table. I want the Account Number and Consumer Name to be the Parent. I've watched lots of tutorials but all data are static and not from Sqlite Database. can someone help me with this? thank you.. 来源： https://stackoverflow.com/questions/59780122/expandable-listview-with-sqlite-data

问题 Problems Messages in Logcat I'm getting from Android Studio: 01-16 11:27:34.088 15846-15846/? W/Glide: Load failed for /storage/emulated/0/9fe457b5-7baf-459d-be34-76ec5c2bcf74audio_record.3gp with size [80x80] class com.bumptech.glide.load.engine.GlideException: Failed to load resource Cause (1 of 3): class com.bumptech.glide.load.engine.GlideException: Failed LoadPath{FileInputStream->Object->Drawable}, LOCAL Cause (1 of 3): class com.bumptech.glide.load.engine.GlideException: Failed

问题 I want to just add back button in Right side of action bar and I found many link for this. This is my code which is app->res->menu->main.xml <menu xmlns:android="http://schemas.android.com/apk/res/android" > <item android:id="@+id/backAction" android:icon="@drawable/ic_launcher" android:title="back" android:showAsAction="always"/> </menu> Optionmenuactivity.java Oncreate event: ActionBar actionBar = getActionBar(); actionBar.setHomeButtonEnabled(true); onoptionItemselected() public boolean

问题 I want to just add back button in Right side of action bar and I found many link for this. This is my code which is app->res->menu->main.xml <menu xmlns:android="http://schemas.android.com/apk/res/android" > <item android:id="@+id/backAction" android:icon="@drawable/ic_launcher" android:title="back" android:showAsAction="always"/> </menu> Optionmenuactivity.java Oncreate event: ActionBar actionBar = getActionBar(); actionBar.setHomeButtonEnabled(true); onoptionItemselected() public boolean

问题 I am trying to convert a Byte Array to a String in order to be able to see this Vector/Array and analyse how these bytes are organized. I'm using the code below to do it: byte[] bytes = bos.toByteArray(); String msgDecode = new String(bytes); // trying to convert byte in String System.out.println("Vetor de bytes [" + msgDecode + "]"); // Showing it But it's not working. Why the code above it's no working? It is worth mentioning that the Byte Array is being constructed according to this other

问题 I wanted to ask where should I keep my AdMob ad unit IDs? Is it wrong to keep it in the strings.xml inside my Android Project? And what happens if someone gets my ad unit IDs? 回答1: You can keep ad unit ID in string.xml or in activity same results, but if someone get your ad unit ID he may do sabotage Here more details from admob about sabotage and how to prevent it https://support.google.com/admob/answer/7062933 ...... Also they suggest to make Authorized Sellers for Apps (app-ads.txt)