大约有 9,900 项符合查询结果（耗时：0.0165秒） [XML]
How to make a countdown timer in Android?
...rt android.os.Bundle;
import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.TextView;
import java.text.SimpleDateFormat;
import java.util.Date;
public class MainActivity extends AppCompatActiv...
How to change the font on the TextView?
...e), and Droid Serif (serif). While you can bundle your own fonts with your application and use them via setTypeface(), bear in mind that font files are big and, in some cases, require licensing agreements (e.g., Helvetica, a Linotype font).
EDIT
The Android design language relies on traditional...
“Default Activity Not Found” on Android Studio upgrade
... Didn't work for me. I'm having to settle for launching the app manually. This sucks.
– DavidH
Oct 30 '18 at 10:55
2
...
Border for an Image view in Android?
... encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="#FFFFFF" />
<stroke android:width="1dp" android:color="#000000" />
<padding android:left="1dp" android:top="1dp" android:right="1dp"
android:bottom...
How to draw border on just one side of a linear layout?
...ding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape android:shape="rectangle">
<solid android:color="#FF0000" />
</shape>
</item>
<item android:left="5dp">
<shape android:shape="recta...
How do I keep the screen on in my App? [duplicate]
For my Android app I never want the phone to lock or the back light to turn off
11 Answers
...
Vertical line using XML drawable
...inside a rotate tag.
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
android:fromDegrees="90"
android:toDegrees="90">
<shape
android:shape="line">
<stroke
android:width="1dp"
android:color="#ff00ff"
a...
Multi-gradient shapes
...oding="utf-8"?>
<shape
xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle"
>
<corners
android:radius="3dp"
/>
<gradient
android:angle="0"
android:startColor="#FF63a34a"
android:endColor="#F...
Changing API level Android Studio
...your minSdkVersion in an existent project...
Update build.gradle(Module: app) - Make sure is the one under Gradle Script and it is NOT build.gradle(Project: yourproject).
An example of build.gradle:
apply plugin: 'com.android.application'
android {
compileSdkVersion 28
buildToolsVersio...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
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