nstarke

How to make a Release Android App debuggable

Let's say you want to access the application shared preferences in /data/data/com.mypackage.
You could try to run adb shell and then run-as com.mypackage ( or adb shell run-as com.mypackge ls /data/data/com.mypackage/shared_prefs), but on a production release app downloaded from an app store you're most likely to see:

run-as: Package 'com.mypackage' is not debuggable

lopspower

Hexadecimal color code for transparency

How to set transparency with hex value ?

For example, you want to set 40% alpha transparence to #000000 (black color), you need to add 66 like this #66000000.

All hex value from 100% to 0% alpha:

alexfu

import android.graphics.Rect;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.View;

public class EqualSpacingItemDecoration extends RecyclerView.ItemDecoration {
  private final int spacing;
  private int displayMode;

  public static final int HORIZONTAL = 0;

metaphore

import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Path;
import android.support.annotation.NonNull;
import android.util.AttributeSet;
import android.widget.FrameLayout;

/**
 * Frame layout that has rounded corners (it clips content too).

eneim

package im.ene.lab.android.widgets;

import android.content.Context;
import android.graphics.PorterDuff;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.design.widget.TabLayout;
import android.util.AttributeSet;

kustra

import android.support.v7.widget.RecyclerView;
import android.view.ViewGroup;

public abstract class HeaderFooterRecyclerViewAdapter<
        ContentViewHolder extends RecyclerView.ViewHolder,
        HeaderViewHolder extends RecyclerView.ViewHolder,
        FooterViewHolder extends RecyclerView.ViewHolder>
        extends RecyclerView.Adapter<RecyclerView.ViewHolder> {

cesarferreira

View Click

Instead of the verbose setOnClickListener:

RxView.clicks(submitButton).subscribe(o -> log("submit button clicked!"));

Filter even numbers

Observable
    .just(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)

gist:7064ba771afaf9cdb79b

# GLOBAL PASSPORT
adb shell pm hide ait.com.vn.main.plus.lte
# Androidシステム
adb shell pm hide android
# タグ
adb shell pm hide com.android.apps.tag
# com.android.backupconfirm
adb shell pm hide com.android.backupconfirm
# Bluetooth
adb shell pm hide com.android.bluetooth

alphamu

import android.annotation.TargetApi;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.os.Build;
import android.util.AttributeSet;
import android.view.Gravity;
import android.widget.TextView;
/**
 * Simple version used in the article:

artem-zinnatullin

android {
  // ...

  testOptions.unitTests.all {
    testLogging {
      events 'passed', 'skipped', 'failed', 'standardOut', 'standardError'
    }
  }
}