This is a sample program that launches the camera and crop the captured image.
Check this link to another crop image example.
This is the layout xml.
<strong>activity_main.xml</strong>
[xml]
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_margin="3dp"
android:text="@string/intro"
android:textStyle="bold" />
<Button
android:id="@+id/capture_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/capture" />
<ImageView
android:id="@+id/picture"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:contentDescription="@string/picture" />
</LinearLayout>
[/xml]
Now this is the Main Java File that implements the crop functionality.
Read More from here...
http://www.coderzheaven.com/2012/12/15/crop-image-android/
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