paulocaldeira17

import android.support.design.widget.AppBarLayout;

/**
 * App bar collapsing state
 * @author Paulo Caldeira <[email protected]>.
 */
public abstract class AppBarStateChangeListener implements AppBarLayout.OnOffsetChangedListener {
    // State
    public enum State {
        EXPANDED,

Mariovc

import android.app.Activity;
import android.content.ComponentName;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.net.Uri;
import android.text.TextUtils;
import android.util.Log;

lopspower

Proguard Configuration

1) Enable Proguard in your build.gradle module :

android {
    //...
 buildTypes {

bjconlan

import dagger.Component
import dagger.Module
import dagger.Provides
import javax.inject.Inject
import javax.inject.Singleton

interface Heater {
  fun on()
  fun off()
}

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)

gabrielemariotti

Centralize the support libraries dependencies in gradle

Working with multi-modules project, it is very useful to centralize the dependencies, especially the support libraries.

A very good way is to separate gradle build files, defining something like:

root
  --gradleScript
 ----dependencies.gradle

rafayali

public void onShareClick(View v) {
    Resources resources = getResources();

    Intent emailIntent = new Intent();
    emailIntent.setAction(Intent.ACTION_SEND);
    // Native email client doesn't currently support HTML, but it doesn't hurt to try in case they fix it
    emailIntent.putExtra(Intent.EXTRA_TEXT, Html.fromHtml(resources.getString(R.string.share_email_native)));
    emailIntent.putExtra(Intent.EXTRA_SUBJECT, resources.getString(R.string.share_email_subject));
    emailIntent.setType("message/rfc822");

Laimiux

package com.laimiux.dayahead.ui.util;

import android.content.Context;
import android.os.Bundle;
import android.os.Parcelable;
import android.support.v4.view.PagerAdapter;
import android.util.Log;
import android.util.SparseArray;
import android.view.LayoutInflater;
import android.view.View;

koocbor

FullScreenDialog dialog = new FullScreenDialog();
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
dialog.show(ft, FullScreenDialog.TAG);

slightfoot

package com.your.package;

import java.util.Random;

import android.app.Activity;
import android.content.Context;
import android.graphics.BitmapFactory;
import android.graphics.BitmapShader;
import android.graphics.Canvas;
import android.graphics.Color;