When you add the fragment in your transaction you should use a tag. fragTrans.replace(android.R.id.content, myFragment, “MY_FRAGMENT”); …and later if you want to check if the fragment is visible: MyFragment myFragment = (MyFragment)getSupportFragmentManager().findFragmentByTag(“MY_FRAGMENT”); if (myFragment != null && myFragment.isVisible()) { // add your code here } See also http://developer.android.com/reference/android/app/Fragment.html
What is Looper? Looper is a class which is used to execute the Messages(Runnables) in a queue. Normal threads have no such queue, e.g. simple thread does not have any queue. It executes once and after method execution finishes, the thread will not run another Message(Runnable). Where we can use Looper class? If someone wants … Read more
This should make your TextView bold, underlined and italic at the same time. strings.xml <resources> <string name=”register”><u><b><i>Copyright</i></b></u></string> </resources> To set this String to your TextView, do this in your main.xml <?xml version=”1.0″ encoding=”utf-8″?> <TextView xmlns:android=”http://schemas.android.com/apk/res/android” android:id=”@+id/textview” android:layout_width=”fill_parent” android:layout_height=”fill_parent” android:text=”@string/register” /> or In JAVA, TextView textView = new TextView(this); textView.setText(R.string.register); Sometimes the above approach will not … Read more
I faced a similar problem after refactoring. This is what i did to resolve this issue: Cleaned the Project Deleted the Build directory Restarted Android Studio Rebuild the Project Run Optionally (Go to the files menu on android, click on “Invalidate Caches / Restart…” uninstall the app on your phone and try again) And everything … Read more
Answering my question based on the suggestions from Maudicus and Hit. Check the WebView tutorial here. Just implement the web client and set it before loadUrl. The simplest way is: myWebView.setWebViewClient(new WebViewClient()); For more advanced processing for the web content, consider the ChromeClient.
I am wondering if there is a way to handle the user pressing Enter while typing in an EditText, something like the onSubmit HTML event. Yes. Also wondering if there is a way to manipulate the virtual keyboard in such a way that the “Done” button is labeled something else (for example “Go”) and performs … Read more
You should use LayoutParams to set your button margins: LayoutParams params = new LayoutParams( LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT ); params.setMargins(left, top, right, bottom); yourbutton.setLayoutParams(params); Depending on what layout you’re using you should use RelativeLayout.LayoutParams or LinearLayout.LayoutParams. And to convert your dp measure to pixel, try this: Resources r = mContext.getResources(); int px = (int) TypedValue.applyDimension( TypedValue.COMPLEX_UNIT_DIP, yourdpmeasure, … Read more
You can use: getResources().getColor(R.color.idname); Check here on how to define custom colors: http://sree.cc/google/android/defining-custom-colors-using-xml-in-android EDIT(1): Since getColor(int id) is deprecated now, this must be used : ContextCompat.getColor(context, R.color.your_color); (added in support library 23) EDIT(2): Below code can be used for both pre and post Marshmallow (API 23) ResourcesCompat.getColor(getResources(), R.color.your_color, null); //without theme ResourcesCompat.getColor(getResources(), R.color.your_color, your_theme); //with … Read more
To force the soft keyboard to appear, you can use EditText yourEditText= (EditText) findViewById(R.id.yourEditText); yourEditText.requestFocus(); InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); imm.showSoftInput(yourEditText, InputMethodManager.SHOW_IMPLICIT); And for removing the focus on EditText, sadly you need to have a dummy View to grab focus. To close it you can use InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); imm.hideSoftInputFromWindow(yourEditText.getWindowToken(), 0); This works … Read more
You can use the setCompoundDrawables method to do this. See the example here. I used this without using the setBounds and it worked. You can try either way. UPDATE: Copying the code here incase the link goes down Drawable img = getContext().getResources().getDrawable(R.drawable.smiley); img.setBounds(0, 0, 60, 60); txtVw.setCompoundDrawables(img, null, null, null); or Drawable img = getContext().getResources().getDrawable(R.drawable.smiley); … Read more