toast | 易学教程

Android高级UI绘制之Snackbar

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MaterialDesign_Snackbar Snackbar的提出实际上是界于Toast和Dialog的中间产物。 Toast: 用户无法交互； Dialog：用户可以交互，但是体验会打折扣，会阻断用户的连贯性操作； Snackbar既可以做到轻量级的用户提醒效果，又可以有交互的功能（必须是一种非必须的操作）。 MainActivity: package com . example . dell . myapplication ; import android . content . Context ; import android . graphics . Color ; import android . os . Bundle ; import android . support . design . widget . Snackbar ; import android . support . design . widget . Snackbar . Callback ; import android . support . v7 . app . AppCompatActivity ; import android . view . LayoutInflater ; import android . view . View ; import android . view .

Show a Toast when user change setting in preferences activity

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问题 I have a preferences Activity with a ListPreference on it and I use this preferences in another activity, But I want to show a Toast whenever, user changing option in preference Activity. For example, when user clicks on second radio button in ListPreference, suddenly a toast shown and says "second". 回答1: What is the problem? Resolve the preference and set a listener that does the toast? Something like this for example ListPreference listPreference = findPreference(key); listPreference

Toast after e-mail been sent in android

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问题 I've been trying for a long time to get an alert, like the toast, to come up after the user has clicked on send button, and the e-mail has been sent. My code seem to be correct, but the toast don't show up. I've been searching a lot to get it right, but I'm stuck. Any help would be appreciated! Regards Anders //My code public class mailer extends Activity { private Button clickBtn; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R

Toasts stopped working in 4.4.2

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问题 In my app Toasts have worked fine until my RazrM phone was upgraded to 4.4.2. then they stopped. I have tried specifically runInUiThread and moving the call to initiate from different places in the code including in onCreate(). The issue [20373751] (Toast not appearing on Android 4.4 KitKat) proposes rebooting or specifically running on the UI thread. Neither makes a difference. That issue also questions if there is a bug in Nexus or KitKat. I have the Toasts running fine in 4.0.4 on a

Cancel a toast android

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问题 my app displays all package names one by one in a custom toast, but the problem is, i don't want the toast to be shown outside the app i.e, when the app exits. how do i end my for loop or somehow stop the toasts from showing up in onDestroy? public class MainActivity extends Activity { float x1, x2; float y1, y2; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // show first time setup SharedPreferences

WP8 OnNavigatedTo fires TWICE after tapping on Toast Notification?

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问题 I'm having a weird issue (or maybe it is expected behavior that I am misunderstanding) with my Toast notification. All I want is to have the toast navigate back to the same page that the user was on when they hit the Start button. Scenario: User opens app, they are shown Page1.xaml. User taps button to navigate to Page2.xaml. From here, they hit the Start button. Here is the Toast notification I set up on Page2.xaml.cs: Microsoft.Phone.Shell.ShellToast toast = new Microsoft.Phone.Shell

Xamarin Toast Message error (C#)

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问题 I want to display a toast Message. If I'd do this in onCreate() it'd work fine. But I want to do it like this and I get an error: Java.Lang.NullPointerException: Attempt to invoke virtual method 'android.content.res.Resources android.content.Context.getResources()' on a null object reference What should I do? public void textToast(string textToDisplay) { Toast.MakeText(this, textToDisplay, ToastLength.Long).Show(); } class SampleTabFragment : Fragment { Button add; MainActivity main = new

How to prevent toast message when creatin app icon on screen

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问题 I want to create appp icon on phone screen and i do it but when i do it automaticli app creates toast message , How to prevent this toast message when creatin app icon or deleting icon on screen? Thanks. That is code of how i do it private void addShortcut(){ Intent shortcutIntent = new Intent("com.android.launcher.action.INSTALL_SHORTCUT"); // Shortcut name shortcutIntent.putExtra(Intent.EXTRA_SHORTCUT_NAME, getString(R.string.app_name)); shortcutIntent.putExtra("duplicate", false);

Why doesn't my Toast show up?

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问题 My toast doesn't show up until after the file has completed downloading (I commented the download function). Any ideas why? public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); ImageView main_image_view = (ImageView)this.findViewById(R.id.main_image_view); TextView text_view = (TextView)this.findViewById(R.id.main_text_view); Context context = getApplicationContext(); CharSequence text = "File Not Found. Downloading... Please be

三伏天里小试牛刀andriod 开发 #华为云·寻找黑马程序员#【华为云技术分享】

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2019年07月，北京，三伏天，好热啊。越热自己还越懒得动换（肉身给的信号），但是做为产品经理/交互设计师的，总想着思考些什么（灵魂上给的信号），或者是学习些什么，更有利于将来的职业发展吧，哈哈哈。工作中开发做为交互的下游，也是好奇大侠们是如何开发的？于是，小试一把。在座的朋友有钱的捧个钱场，没钱的捧个人场。开发环境开发环境建议大家到，安卓官网下面andriod studio。安装过程中，存在代码的文件夹，不要放在C盘。除此启动时建议等久些，最后软件没有出现红色Ⅹ。就可以开始了。安装过程中，很多人忘记安装模拟机，这时可以点击这里看一下，安装。唠叨几句，大家知道layout是安卓开发非常重要的部分。要显示的界面和布局都是什么样子，都在这里。Menu文件是用来描述菜单的一些东西做个toast效果 Toast显示信息在手机的开发中比较常见，常用来提示用户信息。出现几秒后，就会自动消失，不影响用户操作，比较用好提示方式。说了这么多优点，小伙伴是不是想学习了呢？用private viod新建一个toast。用参数string content来显示toast的提示语。用静态方法调入。通过类mToast（）的3个参数，来调整toast显示的位置。简单吧，又学了一小招。呼吸不停学习不止，就从小小的开始。新建 Microsoft Word 文档.pdf 来源：华为云社区征文作者：