Android 搜索图标未显示在操作栏上

本文介绍了Android 搜索图标未显示在操作栏上的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

当我遇到问题时，我正在 Android 上学习本教程.如主题中所述，我的搜索图标未显示在操作栏上.我在这一步遇到了问题.http://developer.android.com/training/basics/actionbar/adding-buttons.html我想我已经做了所有相同的事情，但仍然没有出现.我见过其他人遇到类似问题，但他们的回答对我不起作用.

I was following this tutorial on Android when i came across a problem. As mentioned in topic my search icon isn't showing up on the action bar.I had problem with that step.http://developer.android.com/training/basics/actionbar/adding-buttons.htmlI think i have done everything the same but still nothing shows up.I've seen other people having similar problem but their answers didn't work for me.

最糟糕的是，与其他人不同，与搜索图标相关的问题没有出现，我的甚至没有出现在他们的溢出时.也许它可以引导某人了解我的问题.

The worst thing is unlike others people problems related to search icon not showing up, mine isn't even showing up on overflow while theirs is. Maybe it can guide someone to what's my issue.

main_activity_actions.xml 代码如下

main_activity_actions.xml code below

<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto" >

    <!-- Search, should appear as action button -->
    <item
        android:id="@+id/action_search"
        android:icon="@drawable/ic_action_search"
        android:title="@string/action_search"
        app:showAsAction="ifRoom"/>
    <!-- Settings, should always be in the overflow -->
    <item
        android:id="@+id/action_settings"
        android:title="@string/action_settings"
        app:showAsAction="never"/>

</menu>

main.xml

<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto" >

    <!-- Search, should appear as action button -->
    <item
        android:id="@+id/action_search"
        android:icon="@drawable/ic_action_search"
        android:title="@string/action_search"
        app:showAsAction="ifRoom"/>
    <!-- Settings, should always be in the overflow -->
    <item
        android:id="@+id/action_settings"
        android:title="@string/action_settings"
        app:showAsAction="never"/>

</menu>

activity.main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal" >

    <EditText
        android:id="@+id/edit_message"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:hint="@string/edit_message" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:hint="@string/button_send"
        android:onClick="sendMessage" />

</LinearLayout>

MainActivity.java

public class MainActivity extends ActionBarActivity {

    public final static String EXTRA_MESSAGE = "com.pawel.androidapp.MESSAGE";

    @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.main_activity_actions, menu);
        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here.
        switch(item.getItemId())
        {
        case R.id.action_search:
            openSearch();
            return true;
        case R.id.action_settings:
            openSettings();
            return true;
        default:
            return super.onOptionsItemSelected(item);
        }
    }

    private void openSearch() {
        Toast.makeText(this, "Search pressed", Toast.LENGTH_SHORT).show();
    }

    private void openSettings() {
        startActivity(new Intent(android.provider.Settings.ACTION_SETTINGS));
    }

    public void sendMessage(View view) {
        Intent intent = new Intent(this, DisplayMessageActivity.class);
        EditText editText = (EditText) findViewById(R.id.edit_message);
        String message = editText.getText().toString();
        intent.putExtra(EXTRA_MESSAGE, message);
        startActivity(intent);
    }

}

安卓应用清单

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.pawel.androidapp"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="11"
        android:targetSdkVersion="21" />

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

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name=".DisplayMessageActivity"
            android:label="@string/title_activity_display_message"
            android:parentActivityName="com.pawel.myfirstapp.MainActivity" >
            <meta-data
                android:name="android.support.PARENT_ACTIVITY"
                android:value="com.pawel.androidapp.MainActivity" />
        </activity>

    </application>

</manifest>

Basics

Android 搜索图标未显示在操作栏上

问题描述

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