Sabtu, 07 Maret 2015

Create mirror bitmap using Matrix



package com.example.androidmirrorimage;

import android.support.v7.app.ActionBarActivity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Matrix;
import android.os.Bundle;
import android.widget.ImageView;

public class MainActivity extends ActionBarActivity {

ImageView image1, image2;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
image1 = (ImageView) findViewById(R.id.image1);
image2 = (ImageView) findViewById(R.id.image2);

Bitmap bm = BitmapFactory.decodeResource(getResources(),
R.drawable.ic_launcher);

image1.setImageBitmap(bm);
image2.setImageBitmap(getMirrorBitmap(bm));

}

private Bitmap getMirrorBitmap(Bitmap src) {

Matrix matrix = new Matrix();
matrix.preScale(1, -1);
Bitmap result = Bitmap.createBitmap(
src, 0, 0, src.getWidth(), src.getHeight(), matrix, false);
return result;
}
}

<LinearLayout 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:orientation="vertical"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.androidmirrorimage.MainActivity" >

<TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="android-coding.blogspot.com"
android:textSize="28dp"
android:textStyle="bold" />

<ImageView
android:id="@+id/image1"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1" />

<ImageView
android:id="@+id/image2"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1" />

</LinearLayout>

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