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List View Filter Android
I have created a list view in android and I want to add edit text above the list and when the user enter text the list will be filtered according to user input
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How to set margin of ImageView using code, not xml
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android.view.ViewGroup.MarginLayoutParams has a method setMargins(left, top, right, bottom). Direct subclasses are: FrameLayout.LayoutParams, LinearLayout.LayoutParams and RelativeLayout.LayoutParams.
Using e.g. LinearLayout...
Android - how do I investigate an ANR?
...ce in the "main" thread. This is the event loop thread, and if it is busy, Android cannot process any further GUI events in the application, and thus throws up an ANR dialog.
Now, in the trace you posted, the main thread seems to be doing fine, there is no problem. It is idling in the MessageQueue,...
Disable ScrollView Programmatically?
...to do with the ScrollView, you can change how an ImageView scales with the android:scaleType property (XML) or the setScaleType method - for instance ScaleType.CENTER will not stretch your image and will center it at it's original size
You could modify ScrollView as follows to disable scrolling
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JSON Array iteration in Android/Java
I am building an android app that needs to download and synchronise with an online database, I am sending my query from the app to a php page which returns the relevant rows from a database in JSON format.
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Dialog to pick image from gallery or from camera
...rom gallery:
Intent pickPhoto = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(pickPhoto , 1);//one can be replaced with any action code
onActivityResult code:
protected void onActivityResult(int requestCode, int r...
Tablet or Phone - Android
...(thus the idea of a tablet).
More info : http://groups.google.com/group/android-developers/browse_thread/thread/d6323d81f226f93f
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How does setting baselineAligned to false improve performance in LinearLayout?
...s just building some UI in xml, and Lint gave me a warning and said to set android:baselineAligned to false to improve performance in ListView.
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Converting a string to an integer on Android
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See the Integer class and the static parseInt() method:
http://developer.android.com/reference/java/lang/Integer.html
Integer.parseInt(et.getText().toString());
You will need to catch NumberFormatException though in case of problems whilst parsing, so:
int myNum = 0;
try {
myNum = Integer...
Get boolean from database using Android and SQLite
How can I obtain the value of a boolean field in an SQLite database on Android?
10 Answers
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