API级别21或更高级别的状态栏颜色根据我的要求而变化,但是如何更改API级别21以下的颜色。
以下是两个API的屏幕截图
API级别21:

API等级19:

colors.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="colorPrimary">#3F51B5</color>
<color name="colorPrimaryDark">#303F9F</color>
<color name="colorAccent">#FFFFFF</color>
<item name="b" type="color">#FF33B5E5</item>
<item name="p" type="color">#FFAA66CC</item>
<item name="g" type="color">#FF99CC00</item>
<item name="o" type="color">#FFFFBB33</item>
</resources>
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Style.xml
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
<item name="windowActionBarOverlay">false</item>
<item name="windowNoTitle">true</item>
<item name="windowActionBar">false</item>
</style>
<style name="AppTheme.NoActionBar">
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
<item name="windowActionBar">false</item>
<item name="windowNoTitle">true</item>
</style>
<style name="MyCustomTabLayout" parent="Widget.Design.TabLayout">
<item name="tabSelectedTextColor">@color/colorAccent</item>
</style>
<style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" /> …Run Code Online (Sandbox Code Playgroud) 我想在Lickipop设备上看到的KitKat设备上我的工具栏上显示相同的高程效果.以下是KitKat和Lollipop设备的屏幕截图.我已经提到了这个链接,但我的问题还没有解决.
棒棒糖装置:
Kitkat设备:
ContentMain.xml
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.global.market.checkinternet.MainActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#fff"
android:theme="@style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />
</android.support.design.widget.AppBarLayout>
<android.support.design.widget.TabLayout
android:id="@+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabMode="scrollable"
android:background="#3F51B5"
style="@style/MyCustomTabLayout"
app:tabTextColor="#ffffff"/>
<android.support.v4.view.ViewPager
android:id="@+id/viewpager"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
</LinearLayout>
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app_bar_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:ads="http://schemas.android.com/apk/res-auto"
android:fitsSystemWindows="true"
tools:context="com.global.market.MainActivity">
<include layout="@layout/content_main" />
</android.support.design.widget.CoordinatorLayout>
Run Code Online (Sandbox Code Playgroud) 我已经在我的 android 应用程序中实现了 Mpandroid 饼图,我做了一个 BMI 计算器,我想根据我得到的 BMI 结果突出显示饼图的特定切片。有没有关于如何突出显示特定切片的解决方案不碰它。例如。如果 BMI 介于 10-20 之间,则应突出显示范围为 10-20 的特定切片。 我不希望我的触摸突出显示切片,我希望它根据我获得的 BMI 结果自动发生。
这是我的代码-->
Activity_main.java
public class MainActivity extends AppCompatActivity
{
private RadioGroup radioSexGroup;
private RadioButton radioSexButton;
private int selectedId;
private EditText age;
private EditText height;
private EditText weight;
// private TextView result;
private TextView t1;
private Spinner height_spinner;
private Spinner weight_spinner;
private Button calculate;
private PieChart mChart;
String spinner_height; //Height Spinner
String spinner_weight; //Weight Spinner
String selected_item1;
String selected_item2;
float bmi=0f;
protected String[] BMIcategory …Run Code Online (Sandbox Code Playgroud) 我的代码没有显示Kitkat上的工具栏.
这是我的两个Android版本的ScreenShot.
Kitkat版本:

棒棒糖版:

这可能是背后的原因.
清单文件
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.global.market">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<application
android:allowBackup="true"
android:icon="@mipmap/image_front"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity
android:name=".MainActivity"
android:label="@string/app_name"
android:theme="@style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".detailactivity"
android:label="@string/app_name" />
<activity
android:name="com.google.android.gms.ads.AdActivity"
android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"/>
<meta-data android:name="com.google.android.gms.version" android:value="6111000" />
</application>
</manifest>
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Styles.xml文件
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
<item name="windowActionBarOverlay">false</item>
<item name="windowNoTitle">true</item>
<item name="windowActionBar">false</item>
</style>
<style …Run Code Online (Sandbox Code Playgroud) 我在所有这三个头文件之间感到困惑.我在Balagurusamy for C++中读到它,所有这些文件都用于输入和输出.但有什么区别.我知道我们使用stdio.h用于scanf和printf而我们使用iostream for cin和cout.But有什么用途