You should create your XMLs first, even if they’re blank, so that you can programmatically add items onto your view. If you don’t have many stuff to change in your view, and you’re a beginner, I’d suggest you to keep your current XML and chenge your items in it programmatically (e.g. make a button, some … Read more
From what I understand, you want to compare two arrays that might not be the same size, and if they are not, then only compare up to the shortest size? You can do something like this: boolean equals = true; for(int i = 0; i < test1.length && i < test2.length; i++) { if(!test1[i].equals(test2[i])) { … Read more
You can use \[.*?\]\{.*?\} on your example which I tested out here. This breaks into two smaller regex: \[.*?\], which is the square brackets with any chars inside. \{.*?\}, which is the curly brackets with any chars inside. Both of these are using a non-greedy .* inside the brackets. This way if there is more … Read more
This can be done with the built-in ActionBar. I Recommend following the tutorials on googles website. Also you should know that the native ActionBar requires API level 11, so if you’re interested in a very high compatibility, you need to use a library like ActionBarSherlock. solved How to make title bar in android App [closed]
Eclipse could be remembering the size of the dialog for content assist UI in the workspace/.metadata directory. Try editing this file: <workspace_dir>/.metadata/.plugins/org.eclipse.jdt.ui/dialog_settings.xml Look for the section that looks like this: <section name=”completion_proposal_size”> </section> In my workspace there is no special settings here, but perhaps there are some special settings in your workspace. 1 solved Eclipse … Read more
mLanguageLogoImageView = itemView.findViewById(R.id.language_logo); mLanguageNameTextView = itemView.findViewById(R.id.language_name); mLanguageRankTextView = itemView.findViewById(R.id.language_rank); NullPointerException is thrown when an application attempts to use an object reference that has the null value. At first check your all findViewById elements present in respective xml (R.layout.list_item_language) or not. 0 solved Why does my View.findViewById return null?
Here is the example of what you are trying to achieve: Libraries required: compile ‘com.github.ksoichiro:android-observablescrollview:1.5.0’ compile ‘com.nineoldandroids:library:2.4.0’ Sample XML code: <?xml version=”1.0″ encoding=”utf-8″?> <RelativeLayout xmlns:android=”http://schemas.android.com/apk/res/android” xmlns:app=”http://schemas.android.com/apk/res-auto” xmlns:tools=”http://schemas.android.com/tools” android:layout_width=”match_parent” android:layout_height=”match_parent” app:layout_behavior=”@string/appbar_scrolling_view_behavior” tools:showIn=”@layout/activity_main”> <com.github.ksoichiro.android.observablescrollview.ObservableScrollView android:id=”@+id/scroll” android:layout_width=”match_parent” android:layout_height=”match_parent” android:fillViewport=”true”> <RelativeLayout android:layout_width=”match_parent” android:layout_height=”wrap_content” android:gravity=”center_horizontal|start”> <!– YOUR MAP FRAGMENT HERE –> <ImageView android:id=”@+id/image” android:layout_width=”match_parent” android:layout_height=”@dimen/parallax_image_height” android:layout_gravity=”top” android:scaleType=”centerCrop” android:src=”https://stackoverflow.com/questions/45178569/@drawable/putin” /> <View … Read more
If your application uses the internet, it is possible, that the phone has a worse connection than your comp. Slower connection – you have to wait… Read responsive App and App performance – VERY useful. you will know the name of your problem – bad responsiveness (not performance) – for better further searches solved How … Read more
try this SharedPreferences sp=getSharedPreferences(“Button”, Context.MODE_PRIVATE); SharedPreferences.Editor Ed=sp.edit(); // get status of button to set backround from SharedPreferences in oncrate() methosd if(sp.getBoolean(“button1”,false)){ b1.setBackgroundColor(Color.WHITE); }else { b1.setBackgroundColor(Color.GREEN); } if(sp.getBoolean(“button2”,false)){ b2.setBackgroundColor(Color.WHITE); }else { b2.setBackgroundColor(Color.GREEN); } // set button background status in SharedPreferences b1.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { b1.setBackgroundColor(Color.GREEN); b2.setBackgroundColor(Color.WHITE); Ed.putBoolean(“button1”, true); Ed.commit(); } } … Read more
Try using setOnClickListener to listen to click events import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.EditText; import android.widget.Spinner; import android.widget.TextView; public class MainActivity extends AppCompatActivity { EditText abasic, ahra, aca, lopfd, lophd, la; TextView ebasic, ehra, eca, agross, egross, loprs, hdrs, lars, td, spd, eepf, erpf, tpf, eeesi, eresi, tesi, pfesi; … Read more
This is what XML is for. Create your layout in xml and import it via java. You will want to create your own “bar layout” for the bars in the center, though you could I suppose, fill 3 separate LinearLayouts to achieve the same effect, making a separate layout and putting in it here will … Read more
The Button and View classes need to be imported; e.g. import android.widget.Button; import android.view.View; Your class is in the default package, so all classes that it uses (apart from those in the java.lang package) need to be imported. The reference to button_id is probably a mistake. Button mButton = (Button) findViewById(R.id.button); final Button button = … Read more
You are getting IndexOutOfBoundsException on restrictedAreaArrayList, You are adding imageInfos to restrictedAreaArrayList with restrictedAreaArrayList.add(i,imageInfos); ith index may not exist in restrictedAreaArrayList you can just add it restrictedAreaArrayList.add(imageInfos) Or if you want to preserve the order then make restrictedAreaArrayList’s size equal to imageInfosArrayList you can do that by creating it with restrictedAreaArrayList = new ArrayList<ImageInfos>(imageInfosArrayList.size()); Or … Read more
You’re casting the nullable Activity to a non-null Context in a listener that might be called when the Fragment it no longer attached to an Activity, which means the Activity would be null at that point. You should generally avoid casting with as. In this case, it masks what the problem was. At least if … Read more
If you want the values of all axis from the Magnetometer this will do it. (By default the values is in microTesla) public class MagnetActivity extends AppCompatActivity implements SensorEventListener{ private SensorManager sensorManager; sensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE); @Override public void onSensorChanged(SensorEvent event) { if (event.sensor.getType() == Sensor.TYPE_MAGNETIC_FIELD) { int x_value = event.values[0]; int y_value = event.values[1]; … Read more