goodev’s gists

goodev / main.java

Last active December 29, 2015 12:29

ListView 滚动的时候更新 ActionBar 的 alpha 值

	mListView.setOnScrollListener(new AbsListView.OnScrollListener() {
	@Override
	public void onScrollStateChanged(AbsListView view, int scrollState) {
	}

	@Override
	public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
	float ratio = clamp(mHeader.getTranslationY() / mMinHeaderTranslation, 0.0f, 1.0f);
	//actionbar title alpha
	getActionBarTitleView().setAlpha(clamp(5.0F * ratio - 4.0F, 0.0F, 1.0F));

goodev / AlphaForegroundColorSpan.java

Created November 27, 2013 05:57

设置文字的 Alpha 值

	public class AlphaForegroundColorSpan extends ForegroundColorSpan {

	private float mAlpha;

	public AlphaForegroundColorSpan(int color) {
	super(color);
	}
	[…]

	@Override

goodev / main.java

Created November 27, 2013 05:58

修改文字的 alpha

	mListView.setOnScrollListener(new AbsListView.OnScrollListener() {
	@Override
	public void onScrollStateChanged(AbsListView view, int scrollState) {
	}

	@Override
	public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
	float ratio = clamp(mHeader.getTranslationY() / mMinHeaderTranslation, 0.0f, 1.0f);
	//actionbar title alpha
	setTitleAlpha(clamp(5.0F * ratio – 4.0F, 0.0F, 1.0F));

goodev / main.java

Created November 27, 2013 05:59

初始化 ActionBar 图标并跟随 ListView 来缩放和移动图标

	private ImageView getActionBarIconView() {
	return (ImageView) findViewById(android.R.id.home);
	}

	ActionBar actionBar = getActionBar();
	actionBar.setIcon(R.drawable.ic_transparent);

	mListView.setOnScrollListener(new AbsListView.OnScrollListener() {
	@Override
	public void onScrollStateChanged(AbsListView view, int scrollState) {

goodev / RotateDrawablePost14Activity.java

Created December 2, 2013 05:32

RotateDrawable 动画技巧

	package com.fourmob.sandbox.activities;

	import android.animation.Animator;
	import android.animation.AnimatorListenerAdapter;
	import android.animation.ObjectAnimator;
	import android.animation.ValueAnimator;
	import android.annotation.TargetApi;
	import android.app.Activity;
	import android.graphics.drawable.RotateDrawable;
	import android.os.Build;

goodev / RigidWebView.java

Created December 24, 2013 04:41

* A custom WebView that is robust to rapid resize events in sequence. * * This is useful for a WebView which needs to have a layout of {@code WRAP_CONTENT}, since any * contents with percent-based height will force the WebView to infinitely expand (or shrink).

	/* http://grepcode.com/file_/repository.grepcode.com/java/ext/com.google.android/android-apps/4.3_r2.1/com/android/email/view/RigidWebView.java/?v=source
	* Copyright (C) 2011 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software

goodev / GeneratePropertiesFile.java

Created February 8, 2014 02:57

生成 Eclipse ADT 中libs 目录下的代码关联 properties 文件

	public class GeneratePropertiesFile {

	/**
	* @param args
	* @throws IOException
	*/
	public static void main(String[] args) throws IOException {

	generatePropertiesFile();
	}

goodev / HeaderGridView.java

Created March 4, 2014 07:34

HeaderGridView - android

	/*
	* Copyright (C) 2013 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software

goodev / gist:9479062

Created March 11, 2014 03:38 — forked from skyisle/gist:3870191

	try {
	// force to use overflow menu
	ViewConfiguration config = ViewConfiguration.get(this);
	Field menuKeyField = ViewConfiguration.class
	.getDeclaredField("sHasPermanentMenuKey");
	if (menuKeyField != null) {
	menuKeyField.setAccessible(true);
	menuKeyField.setBoolean(config, false);
	}
	} catch (Exception ex) {

goodev / Manager.java

Last active November 17, 2016 19:41

fix Crouton the ActionBarOverlay problem

	//change de.keyboardsurfer.android.widget.crouton.Manager class

	// add this method below 'handleTranslucentActionBar()' method
	private void handleActionBarOverlay(ViewGroup.MarginLayoutParams params, Activity activity) {
	if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
	final boolean flags = activity.getWindow().hasFeature(Window.FEATURE_ACTION_BAR_OVERLAY);
	if (flags) {
	final int actionBarContainerId = Resources.getSystem().getIdentifier("action_bar_container", "id", "android");
	final View actionBarContainer = activity.findViewById(actionBarContainerId);
	// The action bar is present: the app is using a Holo theme.

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