Resize a bitmap image Android example
public class ApokusActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(new SampleView(this));
}
private static class SampleView extends View {
// CONSTRUCTOR
public SampleView(Context context) {
super(context);
setFocusable(true);
}
@Override
protected void onDraw(Canvas canvas) {
Paint paint = new Paint();
canvas.drawColor(Color.YELLOW);
paint.setFilterBitmap(true);
Bitmap bitmapOrg = BitmapFactory.decodeResource(getResources(),R.drawable.flower_blue);
int targetWidth = bitmapOrg.getWidth() * 2;
int targetHeight = bitmapOrg.getHeight() * 2;
Bitmap bmp = Bitmap.createBitmap(targetWidth, targetHeight,Bitmap.Config.ARGB_8888);
RectF rectf = new RectF(0, 0, targetWidth, targetHeight);
Canvas c = new Canvas(bmp);
Path path = new Path();
path.addRect(rectf, Path.Direction.CW);
c.clipPath(path);
c.drawBitmap( bitmapOrg, new Rect(0, 0, bitmapOrg.getWidth(), bitmapOrg.getHeight()),
new Rect(0, 0, targetWidth, targetHeight), paint);
Matrix matrix = new Matrix();
matrix.postScale(1f, 1f);
Bitmap resizedBitmap = Bitmap.createBitmap(bmp, 0, 0, targetWidth, targetHeight, matrix, true);
int h = bitmapOrg.getHeight();
canvas.drawBitmap(bitmapOrg, 10,10, paint);
canvas.drawBitmap(resizedBitmap, 10,10 + h + 10, paint);
}
}
}
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Další témata ....(Topics)
If you change android:versionCode="224" and android:versionName="2.2.4" in AndroidManifest.xml you have to change this in build.gradle file too.
Click on build.gradle in package explorer tree change your new version name and code:
Click on build.gradle in package explorer tree change your new version name and code:
defaultConfig {
applicationId "cz.okhelp.pocasiwidget"
minSdkVersion 11
targetSdkVersion 23
versionCode 224
versionName "2.2.4"
}
Try add to AndroidManifest.xml configChanges for your Activity
android:configChanges="keyboardHidden|orientation|screenSize"
android:configChanges="keyboardHidden|orientation|screenSize"
<activity android:name=".MainActivity"
android:label="@string/app_name"
android:configChanges="keyboardHidden|orientation|screenSize"
>
- create div with class with name e.g. circle
- create in styleSheet.css class circle
html code
<div class="circle" id="">3</div>
css code
.circle {
border-radius: 50%;
width: 50px;
height: 50px;
background: yellow;
position: absolute;
display: block;
border: 6px solid blue;
font-size: 50px;
text-align: center;
}
3
Throws multiple exceptions Java example source code
public void callFc()
throws IndexOutOfBoundsException, ArithmeticException
{
// my code for example:
String[] sArray = {"aa","bb"};
String str = sArray[5]; // IndexOutOfBoundsException
int n = 5 / 0; // ArithmeticException
}
public void someFC (){
try{
callFc();
}
catch(IndexOutOfBoundsException e){
Log.e("TAG", e.toString());
}
catch(ArithmeticException e2){
Log.e2("TAG",e2.toString());
}
}
Try some solution - each individually or all
- Check AndroidManifest.xml activity declaration
<activity android:name=".EnableProfileActivity" android:label="@string/app_name" />
- Delete BUILD folder in module tree and Clean / Rebuild project
- Restart Android Studio
Editace: 2013-12-09 13:09:20
Počet článků v kategorii: 396
Url:resize-a-bitmap-image-android-example