Question

我正在尝试自定义操作栏的外观并且它似乎不起作用。当我专门将其设置为红色时，背景显示为灰色。

my build.gradle

apply plugin: 'com.android.application'

android {
    compileSdkVersion 22
    buildToolsVersion "22.0.1"

    defaultConfig {
        applicationId "com.eliddell.rapsheet"
        minSdkVersion 15
        targetSdkVersion 22
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    wearApp project(':wear')
    compile 'com.android.support:appcompat-v7:22.0.0'
    compile 'com.google.android.gms:play-services:7.0.0'
}

styles.xml

<resources>
    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light">
        <!-- Customize your theme here. -->
    </style>
    <style name="CustomActionBarTheme"
        parent="@style/AppTheme">
        <item name="android:actionBarStyle">@style/MyActionBar</item>
    </style>
    <!-- ActionBar styles -->
    <style name="MyActionBar"
        parent="@style/CustomActionBarTheme">
        <item name="android:background">@color/red</item>
    </style>
</resources>

清单

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.eliddell.rapsheet" >

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/CustomActionBarTheme" >
        <activity
            android:name=".MainActivity"
            android:theme="@style/CustomActionBarTheme"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

主要活动

    import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;


public class MainActivity extends ActionBarActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}

如果我将我的样式更新为：

<resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="android:Theme.Holo.Light">
        <!-- Customize your theme here. -->
    </style>

    <style name="CustomActionBarTheme"
        parent="@style/AppTheme">
        <item name="android:actionBarStyle">@style/MyActionBar</item>
    </style>

    <!-- ActionBar styles -->
    <style name="MyActionBar"
        parent="@android:style/Widget.Holo.Light.ActionBar.Solid.Inverse">
        <item name="android:background">@color/red</item>
    </style>

</resources>

然后我简要地看到颜色变化，但应用程序崩溃了：

引起：java.lang.IllegalStateException：你需要使用一个具有此活动的Theme.AppCompat主题（或后代）。

Answer 1

好的，所以我想出来了，谢谢大家的帮助。问题是我的样式xml指向＆＃34; android：background＆＃34;和＆＃34; android：actionBarStyle＆＃34;但随着支持库的到位，＆＃34; android：＆＃34;被放弃..

<resources>

<!-- Base application theme. -->
<style name="CustomActionBarTheme" parent="Theme.AppCompat.Light">
    <!-- Customize your theme here. -->
    <item name="actionBarStyle">@style/MyActionBar</item>
</style>



<!-- ActionBar styles -->
<style name="MyActionBar" parent="Widget.AppCompat.ActionBar">
    <item name="android:windowBackground">@color/sapient_heat</item>

    <item name="background">@color/red</item>

</style>

Answer 2

public class MainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    if (Build.VERSION.SDK_INT >= 11) {
        requestWindowFeature(Window.FEATURE_ACTION_BAR);
    } else {
        requestWindowFeature(Window.FEATURE_NO_TITLE);
    }
    setContentView(R.layout.activity_main);
    if (Build.VERSION.SDK_INT >= 11) {
        ActionBar actionBar = this.getActionBar();
        actionBar.setBackgroundDrawable(new ColorDrawable(Color
                .parseColor("#ff0000")));
        actionBar.show();
    }

}

在SDK版本11之后使用ActionBar，获取ActionBar的实例而不是你想要的

Answer 3

在android清单中使用主题：

android:theme="@style/AppTheme"

并且在活动中将其扩展为

public class MainActivity extends ActionBarActivity{

将操作栏的自定义视图扩展为：

// Inflate your custom layout
        final ViewGroup actionBarLayout = (ViewGroup) getLayoutInflater().inflate(
                R.layout.actionbar_layout,
                null);
        //Set Custom ActionBar
        actionBar = getSupportActionBar();
        actionBar.setDisplayShowHomeEnabled(false);
        actionBar.setDisplayShowTitleEnabled(false);
        actionBar.setDisplayShowCustomEnabled(true);
        actionBar.setCustomView(actionBarLayout);

其中actionbar_layout是操作栏的布局xml

自定义ActionBar主题不起作用

3 个答案: