capturing images using the built-in camera application
explore the built-in features of Android, with built-in image capture and storage that provides a great starting point for all media features on Android, laying the groundwork for us to work with audio and video in later chapters.
here's how to take advantage of the built-in camera app.
Package Com.example;import Java.io.file;import Android.app.activity;import android.content.intent;import Android.graphics.bitmap;import Android.graphics.bitmapfactory;import Android.net.uri;import Android.os.Bundle; Import Android.os.environment;import Android.view.display;import Android.view.view;import Android.view.view.onclicklistener;import Android.widget.button;import Android.widget.imageview;public Class Mainactivity extends Activity {final static int camera_result = 0;imageview IMV; Button but; @Overrideprotected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview (R.layout.fragment_main); Findviewbyid ();
But.setonclicklistener (New Onclicklistener () {public void OnClick (View v) {
/* Run camera built-in camera intent */intent i = new Intent (Android.provider.MediaStore.ACTION_IMAGE_CAPTURE); Startactivityforresult ( I, Camera_result);}});} private void Findviewbyid () {but = (Button) Findviewbyid (r.id.but); IMV = (ImageView) Findviewbyid (r.id.img);} /* When the activity finishes running, the photo is displayed */
@Overrideprotected void Onactivityresult (int requestcode, int resultcode, Intent data) {Super.onactivityresult ( Requestcode, ResultCode, data); if (ResultCode = = RESULT_OK) {Bundle bundle = Data.getextras (); Bitmap bmp = (Bitmap) bundle.get ("Data"); Imv.setimagebitmap (BMP);}}
Androidmanifest.xml Configuration
<application android:allowbackup= "true" android:icon= "@drawable/ic_launcher" android:label= "@ String/app_name " android:theme=" @style/apptheme "> <activity android:name=" Com.example.MainActivity " android:label=" @string/app_name "> <intent-filter> <action Android:name= "Android.intent.action.MAIN"/> <category android:name= "Android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application>
Activity_main.xml Configuration
<relativelayout xmlns:android= "http://schemas.android.com/apk/res/android" xmlns:tools= "http// Schemas.android.com/tools "android:layout_width=" match_parent "android:layout_height=" Match_parent "Android:paddi ngbottom= "@dimen/activity_vertical_margin" android:paddingleft= "@dimen/activity_horizontal_margin" Android: paddingright= "@dimen/activity_horizontal_margin" android:paddingtop= "@dimen/activity_vertical_margin" > <I Mageview android:id= "@+id/img" android:layout_width= "wrap_content" android:layout_height= "Wrap_co Ntent "android:layout_alignparenttop=" true "android:layout_centerinparent=" true "/> &L T Button android:id= "@+id/but" android:layout_width= "wrap_content" android:layout_height= "Wrap_cont Ent "android:layout_below=" @id/img "android:layout_centerinparent=" true "android:text=" take_a_pict Ure "/> </RelativeLayout>
Android camera Feature