Patrick Hammond patrickhammond

Platform versions

1.5 (3 - Cupcake)
1.6 (4 - Donut)
2.0 through 2.1 (5, 6, 7 - Eclair)
2.2 (8 - Froyo)
2.3.1 through 2.3.3 (9, 10 - Gingerbread)
3.0 through 3.2 (11 - Honeycomb)
4.0.0 (14 - Ice Cream Sandwich)
4.0.3 (15 - Ice Cream Sandwich - MR1)
4.1.2 (16 - Jelly Bean)

Display the certificate used to sign the APK: keytool -list -printcert -jarfile app-release.apk

Display how each APK file is signed: jarsigner -verify -verbose -certs app-release.apk

Display certificate information: keytool -list -v -keystore yourkeystore -alias youralias

Display some of the info around how the APK presents itself: aapt d badging app-prod-release.apk

Decompile an existing APK: apktool d app-prod-release.apk (see: https://code.google.com/p/android-apktool)

UI

Great overview of spans: http://flavienlaurent.com/blog/2014/01/31/spans/

Networking

Reachability guidance: http://guides.cocoahero.com/determining-web-service-reachability-on-android.html

Development tricks

Placeholder text: https://plus.google.com/+AndroidDevelopers/posts/eXfegungS64

Context

I was previously using https://gist.github.com/dmarcato/d7c91b94214acd936e42 to strip down Google Mobiele Services, but the build times for my project in Android Studio consistently exceeded 75 seconds; this solution is much less dynamic (and even a little ugly) but keeps my build times less than 15s.

Assumptions

Your app module has a directory named aars that will work as a project specific Maven repository; this directory should be placed under version control.
- Once https://code.google.com/p/android/issues/detail?id=55863 is resolved and released things might get a little cleaner,
Maven (mvn) is installed and available on your path when running this script.

	/**
	* Created by Bill on 7/28/14.
	*/
	public class LearningApplication extends Application {

	private static final String TAG = QuickeyLearningApplication.class.getSimpleName();

	@Override
	public void onCreate() {
	super.onCreate();

	public Class CustomView {
	public CustomView(Context context, AttributeSet attrs) {
	super(context, attrs);

	// Makes the developer tools happy when previewing stuff
	if (isInEditMode()) {
	return;
	}
	}
	}

	import android.os.Parcel;
	import android.os.Parcelable;

	public class ParcelableHelper {
	/**
	* There is not always a guarantee that Parcelable values will be immediately written out and
	* read back in. For data data that mutable (its own issue), this can be a problem. This is
	* for the times when it would be great to have confidence that you will be working with a copy
	* of that data.
	*/

	public class MyActivity extends Activity {
	@Override
	protected void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	setContentView(R.layout.activity_my);

	// Old school
	Button button = (Button) findViewById(R.id.button);
	button.setOnClickListener(new OnClickListener() {
	@Override

	public class DevicePhoneNumber {
	public final String phoneNumber;

	public DevicePhoneNumber(String phoneNumber) {
	this.phoneNumber = phoneNumber;
	}

	@Override
	public String toString() {
	return "DevicePhoneNumber{" +

	#!/bin/sh
	find . -name *.iml -print0 \| xargs -0 rm
	rm -rf .idea/