How get Drawable Android example

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InputStream, getResources(),openRawResource()


 java.io.InputStream is;
is = context.getResources().openRawResource(R.drawable.my_image);

Drawable mDrawable = context.getResources().getDrawable(R.drawable.button);
mDrawable.setBounds(150, 20, 300, 100);


Drawable[] mDrawables;
int[] resIDs = new int[] {
                R.drawable.btn_ok,
                R.drawable.btn_storno,
                R.drawable.btn_help
            };
            mDrawables = new Drawable[resIDs.length];
            Drawable prev = mDrawable;
            for (int i = 0; i < resIDs.length; i++) {
                mDrawables[i] = context.getResources().getDrawable(resIDs[i]);
                mDrawables[i].setDither(true);
                addToTheRight(mDrawables[i], prev);
                prev = mDrawables[i];
            }

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210

No Launcher activity found Android Emulator Error | no-launcher-activity-found-android-emulator-error

Error: No Launcher activity found!
The launch will only sync the application package on the device!
Android emulator not showing the app
Workaround:
Check AndroidManifest.xml for MAIN and LAUNCHER. MyActivity.java is first Activity what will opened if .apk is installed.


<application android:label="@string/app_name" android:icon="@drawable/icon">
    <activity android:name="MyActivity"
              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>

332

Lenovo A6000 smartphone pictures from camera 8mpx review | lenovo-a6000-smartphone-pictures-from-camera-8mpx

Pictures taken by front camera Lenovo A6000 smartpohone - review.
Do not take pictures against the sun.
Stay in the shade. Keep lens clean.

Night without flash

Misty - smog

Without flash in room - TV screen

266

Change icon set Android developers example | change-icon-set-android-developers

How to quickly change all icon set in .apk project with Eclipse:

Right click on project in folder tree
Select New - Ohter

In open wizard dialog select Android Icon Set

Set Icon set name:

Open some large icon for your project for example 512x512 px and wizard will make all set of icons from one largest icon:

Wizard will create all set of icons from this one largest icon.
Click on finish button:

279

Start Open New Activity Android Code | start-open-new-activity-android-code


      Intent i = new Intent(this, MyNextClass.class);
      startActivity(i);

190

Get Screen Size Pixels per Inch Android example | get-screen-pixels-android-example

The exact physical pixels per inch of the screen
Get size of pixel
Get DPI
Get count of pixels per inch


        float mXDpi;
        float mYDpi;
           DisplayMetrics metrics = new DisplayMetrics();
            getWindowManager().getDefaultDisplay().getMetrics(metrics);
            mXDpi = metrics.xdpi; // The exact physical pixels per inch of the screen in the X dimension. 
            mYDpi = metrics.ydpi;
          float  mMetersToPixelsX = mXDpi / 0.0254f; // 1 inch == 0.0254 metre
          float  mMetersToPixelsY = mYDpi / 0.0254f;

Editace: 2013-12-09 13:12:46
Počet článků v kategorii: 397
Url:how-get-drawable-android-example

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