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What is the purpose of “android.intent.category.DEFAULT”?
What is the purpose of using android.intent.category.DEFAULT in the Category field of Intent Filters?
7 Answers
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Android Min SDK Version vs. Target SDK Version
When it comes to developing applications for Android, what is the difference between Min and Target SDK version? Eclipse won't let me create a new project unless Min and Target versions are the same!
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dpi value of default “large”, “medium” and “small” text views android
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See in the android sdk directory.
In \platforms\android-X\data\res\values\themes.xml:
<item name="textAppearanceLarge">@android:style/TextAppearance.Large</item>
<item name="textAppearanceMedium">@android:sty...
Display the current time and date in an Android application
How do I display the current date and time in an Android application?
23 Answers
23
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Android canvas draw rectangle
...h 0 and the desired fill colour(s).
For example:
DrawView.java
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.view.View;
public class DrawView extends View {
Paint paint = new Paint();
public...
EditText, clear focus on touch outside
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If a view want to receive focus, it must satisfy these 3 conditions.
See android.view :
public boolean onTouchEvent(MotionEvent event) {
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if (((viewFlags & CLICKABLE) == CLICKABLE ||
(viewFlags & LONG_CLICKABLE) == LONG_CLICKABLE)) {
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if (isFocusable...
Remove/hide a preference from the screen
...PreferenceCategory, you have to do this:
XML:
<PreferenceCategory
android:key="category_foo"
android:title="foo">
<CheckBoxPreference
android:key="checkPref" />
Java:
CheckBoxPreference mCheckBoxPref = (CheckBoxPreference) findPreference("checkPref");
Preference...
How to create your own library for Android development to be used in every program you write?
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You have to create Android Library Project.
Create android project in Eclipse, enter Project Properties -> Android and check isLibrary property. Now you can add this library to your Android Application project by adding it to list on the sam...
Adding a library/JAR to an Eclipse Android project
This is a two-part question about adding a third-party library (JAR) to an Android project in Eclipse.
8 Answers
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“R cannot be resolved to a variable”? [duplicate]
...follow the following links:
Here is the best way to solve this problem: [Android Development- Where is my R.Java file?][2]
R.java not regenerating
R cannot be resolved - Android error
R cannot be resolved to a variable
R cannot be resolved to a variable -- mailing list entry
Fixed: R cannot be res...