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Android: Background Image Size (in Pixel) which Support All Devices
I am creating an Application which will run on all Android Devices. I want to create xhdpi Graphics for My App. My App is full screen. I am confused in Creating graphics. can any one tell me the best sizes of my background image in pixels.
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How To Set Text In An EditText
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Why does android.text.Editable exist or, better yet, why are normal developers supposed to navigate around it instead of EditText exposing an void setText(CharSequence) method?
– Marcelo Lacerda
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How to create a file in Android?
How to create a file, write data into it and read data from it on Android? If possible provide a code snippet.
4 Answers
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How do I see if Wi-Fi is connected on Android?
...d be noted (for us n00bies here) that you need to add
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
to your
AndroidManifest.xml for this to work.
NOTE2: public NetworkInfo getNetworkInfo (int networkType) is now deprecated:
This method was deprecated in AP...
What is INSTALL_PARSE_FAILED_NO_CERTIFICATES error?
...ge my default/main/startup (whatever you call it) activity by editing the androidmanifest.xml file. All i did was change the android:name property. however, this completely broke the entire app. when I try to install it fails and reads.
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Android系统级推送原理详解：为什么App被杀也能收到通知？ - App应用开发 -...
...统。
一、核心架构：一条"公用"的长连接
Android 系统级推送的精髓：不是每个 App 自己建连接，而是操作系统维护一条到推送云端的长连接，所有 App 共享它。
消息流转过程：
你的服务器 -> 推送云（FCM/极光...
Chrome DevTools Devices does not detect device when plugged in
...s/remote-debugging
Install Windows USB driver http://developer.samsung.com/android/tools-sdks/Samsung-Android-USB-Driver-for-Windows
Install Android SDK http://developer.android.com/sdk/index.html
Install Android SDK Platform-tools http://developer.android.com/sdk/installing/adding-packages.html (th...
How to connect to my http://localhost web server from Android Emulator
What can I do in the Android emulator to connect it to my localhost web server page at http://localhost or http://127.0.0.1 ?
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How to implement a confirmation (yes/no) DialogPreference?
....setTitle("Title")
.setMessage("Do you really want to whatever?")
.setIcon(android.R.drawable.ic_dialog_alert)
.setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
Toast.makeText(MainActivity.this...
Android 'Unable to add window — token null is not for an application' exception
I get the following Android exception when I try to open a dialog. Can someone please help me understand what is going on and how can I fix this problem?
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