- Part 2

Android: Long EditText Short Button In RelativeLayout

May 27, 2011 by blogmeister·0 Comments

Do you want to accomplish a search form that looks like this?

The only possible way is to use RelativeLayout. I had no such luck with using a LinearLayout and it seems that it cannot be done using that so RelativeLayout is the way to go.

Check the XML code below.

<RelativeLayout android:layout_width="fill_parent" android:layout_height="wrap_content" 
android:background="@color/white">
	<EditText android:layout_width="fill_parent" android:layout_height="wrap_content"
	  android:textColor="@color/black" android:text="type something"
	  android:layout_alignParentLeft="true" android:layout_centerVertical="true"
	  android:layout_toLeftOf="@+id/button"
	/>
	<Button android:text="CLICK" android:id="@+id/button" 
	android:layout_width="wrap_content" android:layout_height="wrap_content"
	android:layout_alignParentRight="true"/>
</RelativeLayout>

<RelativeLayout android:layout_width="fill_parent" android:layout_height="wrap_content"

android:background="@color/white">

<EditText android:layout_width="fill_parent" android:layout_height="wrap_content"

android:textColor="@color/black" android:text="type something"

android:layout_alignParentLeft="true" android:layout_centerVertical="true"

android:layout_toLeftOf="@+id/button"

<Button android:text="CLICK" android:id="@+id/button"

android:layout_width="wrap_content" android:layout_height="wrap_content"

android:layout_alignParentRight="true"/>

</RelativeLayout>

Android: Fix Alternative Thin & Thick Lines of ListView

May 27, 2011 by blogmeister·0 Comments

What if the divider lines of your ListView look like this? You wonder why when you clearly specified in your XML that the divider height should only be 1px. So why is it thick in alternating rows?

I am not saying this is the only solution but there is a big chance that this is the one. Check your AndroidManifest.xml and see if you have set a minimum and maximum version SDK required. If not, then add it. The divider height for your ListView will all be 1px.

Check the code below.

<uses-sdk android:maxSdkVersion="8" android:minSdkVersion="4" />

1	<uses-sdk android:maxSdkVersion="8" android:minSdkVersion="4" />

On a side note, this is also the solution for rating stars that are not displayed in crisp detail instead showing you blurred edges.

How To Call A Method That Is In Activity In A TabHost

May 26, 2011 by blogmeister·0 Comments

At some point in your TabHost, you may want to call some methods found in your Activity classes. You can actually but not by instantiating the Activity class.

Using the LocalActivityManager class, you can get a reference to the activity object using this code.

String tabTag = getTabHost().getCurrentTabTag();
MyActivity a = (MyActivity) getLocalActivityManager().getActivity(tabTag);
a.myMethod();

String tabTag = getTabHost().getCurrentTabTag();

MyActivity a = (MyActivity) getLocalActivityManager().getActivity(tabTag);

a.myMethod();

From there, you can call the method. Just make sure it is set to public ;). Oh yeah, be sure you have your tag variables as global so you can get access to those spec tabs anywhere, anytime in case you want to gain access to your Activity classes.

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Month: May 2011

Android: Long EditText Short Button In RelativeLayout

Android: Fix Alternative Thin & Thick Lines of ListView

How To Call A Method That Is In Activity In A TabHost