There is another solution that does not need modifying source code of ViewPager and FragmentStatePagerAdapter, and it works with the FragmentPagerAdapter base class used by the author. I’d like to start by answering the author’s question about which ID he should use; it is ID of the container, i.e. ID of the view pager itself. … Read more
Here is a little code to accomplish it: LinearLayout ll = new LinearLayout(this); ll.setOrientation(LinearLayout.VERTICAL); LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams( LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT); layoutParams.setMargins(30, 20, 30, 0); Button okButton=new Button(this); okButton.setText(“some text”); ll.addView(okButton, layoutParams);
There is an easier way than the one written by CommonsWare. Just create a drawable resource that specifies the way the EditText will be drawn: <?xml version=”1.0″ encoding=”utf-8″?> <!– res/drawable/rounded_edittext.xml –> <shape xmlns:android=”http://schemas.android.com/apk/res/android” android:shape=”rectangle” android:padding=”10dp”> <solid android:color=”#FFFFFF” /> <corners android:bottomRightRadius=”15dp” android:bottomLeftRadius=”15dp” android:topLeftRadius=”15dp” android:topRightRadius=”15dp” /> </shape> Then, just reference this drawable in your layout: <?xml version=”1.0″ … Read more
onMeasure() is your opportunity to tell Android how big you want your custom view to be dependent the layout constraints provided by the parent; it is also your custom view’s opportunity to learn what those layout constraints are (in case you want to behave differently in a match_parent situation than a wrap_content situation). These constraints … Read more
You can use new Property Animation Api for color animation: int colorFrom = getResources().getColor(R.color.red); int colorTo = getResources().getColor(R.color.blue); ValueAnimator colorAnimation = ValueAnimator.ofObject(new ArgbEvaluator(), colorFrom, colorTo); colorAnimation.setDuration(250); // milliseconds colorAnimation.addUpdateListener(new AnimatorUpdateListener() { @Override public void onAnimationUpdate(ValueAnimator animator) { textView.setBackgroundColor((int) animator.getAnimatedValue()); } }); colorAnimation.start(); For backward compatibility with Android 2.x use Nine Old Androids library from Jake … Read more
Materialized views are disk based and are updated periodically based upon the query definition. Views are virtual only and run the query definition each time they are accessed.
Let’s say you generate a bunch of views that are similar. You could set an OnClickListener for each view individually: button1.setOnClickListener(new OnClickListener … ); button2.setOnClickListener(new OnClickListener … ); … Then you have to create a unique onClick method for each view even if they do the similar things, like: public void onClick(View v) { doAction(1); … Read more
You can simply switch your Activity’s windowSoftInputModeflag to adjustPan in your AndroidMainfest.xml file inside your activity tag. Check the official documentation for more info. <activity … android:windowSoftInputMode=”adjustPan”> </activity> If your container is not changing size, then you likely have the height set to “match parent”. If possible, set the parent to “Wrap Content”, or a … Read more
To help me remember the meaning of padding, I think of a big coat with lots of thick cotton padding. I’m inside my coat, but me and my padded coat are together. We’re a unit. But to remember margin, I think of, “Hey, give me some margin!” It’s the empty space between me and you. … Read more
If you need root view of your activity (so you can add your contents there) use findViewById(android.R.id.content).getRootView() Also it was reported that on some devices you have to use getWindow().getDecorView().findViewById(android.R.id.content) instead. Please note that as Booger reported, this may be behind navigation bar (with back button etc.) on some devices (but it seems on most … Read more