Android

Android Shape Background Example with source code
Author : Ishtek

Using Android API Level : 7 
In this example we shall see a very simple ways to work with
Shape API from Android platform.

As shown below, the image depicts a rectangular shape of a text view 
on screen. In this example there is a customized user defined shape 
that is showing a text label on screen.

The main Activity class of this example has the onCreate method overriden
in order to set the background of the textview with a shape as drawable.

MainActivity.java
/** * This code is provided on "AS IS" basis without guarantee/warranty * of any kind. Use of this code subjected to user's own risk. * @Author: Ishtek at usingframeworks@gmail.com * @Date : 27th Feb 2013. */ package com.example.customshapeexample; import android.os.Bundle; import android.app.Activity; import android.content.res.Resources; import android.graphics.drawable.Drawable; import android.view.Menu; import android.widget.TextView; public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Resources res = getResources(); Drawable shape = res. getDrawable(R.drawable.textview_background); TextView txtView = (TextView) findViewById(R.id.txtView); txtView.setBackgroundDrawable(shape); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.activity_main, menu); return true; } }
This activity_main XML file is the configuration for using the with some parameters values. activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="fill_parent" android:layout_height="fill_parent" android:paddingTop="50dp" android:paddingLeft="50dp"> <TextView android:id="@+id/txtView" android:layout_width="100dp" android:layout_height="100dp" android:text="TEST" android:textStyle="bold" android:textSize="24dp" /> </RelativeLayout>
Following configuration XML file is the descriptive way of defining Shape with gradient, stroke, corners, padding etc. textview_background.xml
<?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" android:thickness="0dp"> <gradient android:startColor="#eeee99" android:endColor="#aaaa33" android:angle="90" android:gradientRadius="2"/> <stroke android:width="1dp" android:color="#FFFFFF"/> <corners android:radius="10dp" /> <padding android:left="10dp" android:top="10dp" android:right="10dp" android:bottom="10dp"/> </shape>
For the text mentioned on the Button, following style can be used for showing appropriate style items. If every items of this example are setup properly, then the runtime screen of this example would look something like this, as shown below: By slightly altering background specific configuration file, the shape of TextView's background can be made as shown below: Here the shape is changed to oval in the "textview_background.xml" file. <?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" android:thickness="0dp" android:shape="oval"> <gradient android:startColor="#eeee99" android:endColor="#aaaa33" android:angle="90" android:gradientRadius="2"/> <stroke android:width="1dp" android:color="#FFFFFF"/> <corners android:radius="10dp" /> <padding android:left="25dp" android:top="30dp" android:right="10dp" android:bottom="10dp"/> </shape> In case someone is interested in commenting on this Page, please use following form.
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