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我已经在我的应用程序中实现了一个搜索系统，并且出现了搜索栏，但是当按下 Enter 时，搜索活动不会加载。

除此之外，在搜索框中输入的文本也是黑色的。操作栏也是黑色的，那么有没有办法在 API 14+ 上让它变成白色？

我的主要活动：

package com.liamwli.spotify.spotifycommunity;

import java.net.MalformedURLException;
import java.net.URL;

import android.annotation.SuppressLint;
import android.app.ActionBar;
import android.app.Activity;
import android.app.SearchManager;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.ProgressBar;
import android.widget.SearchView;
import android.widget.Toast;

@SuppressLint("SetJavaScriptEnabled")
public class MainActivity extends Activity {

    ProgressBar progress;
    WebView wv;
    WebSettings wvs;
    String url, prefix;
    SharedPreferences prefs;
    SharedPreferences.Editor editor;
    ActionBar ab;

    @SuppressLint("NewApi")
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        prefs = PreferenceManager.getDefaultSharedPreferences(this);
        editor = prefs.edit();

        ab = getActionBar();

        ab.setHomeButtonEnabled(true);

        progress = (ProgressBar) findViewById(R.id.pBProgress);
        wv = (WebView) findViewById(R.id.wVPage);
        wv.setWebViewClient(new WebViewClient() {

            @Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
                // TODO Auto-generated method stub

                if (!url.contains("community.spotify.com")
                        && !url.contains("facebook.com")
                        && !url.contains("spotify.com")) {
                    Intent i = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
                    i.addCategory(Intent.CATEGORY_BROWSABLE);
                    i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                    startActivity(i);
                } else {
                    view.loadUrl(url);
                }

                return super.shouldOverrideUrlLoading(view, url);
            }
        });
        wv.setWebChromeClient(new WebChromeClient() {

            @Override
            public void onProgressChanged(WebView view, int newProgress) {
                // TODO Auto-generated method stub

                if (newProgress < 100
                        && progress.getVisibility() == ProgressBar.GONE) {
                    progress.setVisibility(ProgressBar.VISIBLE);

                }
                progress.setProgress(newProgress);
                if (newProgress == 100) {
                    progress.setVisibility(ProgressBar.GONE);

                }

                super.onProgressChanged(view, newProgress);
            }

        });
        wvs = wv.getSettings();

        if (prefs.getBoolean("javascript_enabled", true)) {
            wvs.setJavaScriptEnabled(true);
            wvs.setJavaScriptCanOpenWindowsAutomatically(true);
        }

        if (Build.VERSION.SDK_INT >= 11)
            wvs.setDisplayZoomControls(true);
        wvs.setSupportZoom(true);
        wvs.setSupportMultipleWindows(true);

        if (prefs.getBoolean("desktop_mode", false)) {
            prefix = "/?device-view=desktop";
        } else {
            prefix = "/?device-view=mobile";

        }

        url = "http://community.spotify.com" + prefix;

        Intent liam = getIntent();
        if (liam.getAction() == Intent.ACTION_VIEW) {
            Uri data = liam.getData();
            URL urlurl = null;
            try {
                urlurl = new URL(data.getScheme(), data.getHost(),
                        data.getPath());
            } catch (MalformedURLException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
                throw new RuntimeException("Malformed URL Given");
            }
            url = urlurl.toString() + prefix;

        }

        if (url == null)
            throw new RuntimeException("URL Null");

        wv.loadUrl(url);

    }

    @SuppressLint("NewApi")
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // TODO Auto-generated method stub

        MenuInflater inflater = new MenuInflater(this);
        inflater.inflate(R.menu.activity_main, menu);

        SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
        SearchView searchView = (SearchView) menu.findItem(R.id.menu_search)
                .getActionView();
        searchView.setSearchableInfo(searchManager
                .getSearchableInfo(getComponentName()));
        searchView.setIconifiedByDefault(false); // Do not iconify the
                                                    // widget;
                                                    // expand it by default

        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // TODO Auto-generated method stub

        switch (item.getItemId()) {
        case R.id.menu_back:

            if (wv.canGoBack()) {
                wv.goBack();
            } else {
                Toast.makeText(this, "Can't Go Back!", Toast.LENGTH_SHORT)
                        .show();
            }

            break;
        case R.id.menu_forward:

            if (wv.canGoForward()) {
                wv.goForward();
            } else {
                Toast.makeText(this, "Can't Go Forward!", Toast.LENGTH_SHORT)
                        .show();
            }

            break;
        case R.id.menu_refresh:

            wv.reload();

            break;
        case R.id.menu_settings:

            Intent i = new Intent(this, PrefActivity.class);
            startActivity(i);

            break;
        case R.id.menu_search:

            onSearchRequested();

            break;
        case android.R.id.home:

            wv.loadUrl("http://community.spotify.com" + prefix);

            break;
        }

        return super.onOptionsItemSelected(item);

    }

}

我的清单：

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

    <uses-sdk
        android:minSdkVersion="7"
        android:targetSdkVersion="17" />

    <uses-permission android:name="android.permission.INTERNET" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.liamwli.spotify.spotifycommunity.StartActivity"
            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="com.liamwli.spotify.spotifycommunity.MainActivity"
            android:excludeFromRecents="true"
            android:exported="true"
            android:label="@string/app_name"
            tools:ignore="ExportedActivity" >
            <intent-filter>
                <action android:name="com.liamwli.spotify.spotifycommunity.MAINACTIVITY" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
            <intent-filter>
                <action android:name="android.intent.action.VIEW" />

                <category android:name="android.intent.category.BROWSABLE" />
                <category android:name="android.intent.category.DEFAULT" />

                <data android:scheme="http" />
            </intent-filter>
        </activity>
        <activity
            android:name="com.liamwli.spotify.spotifycommunity.PostUrl"
            android:excludeFromRecents="true"
            android:exported="false"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="com.liamwli.spotify.spotifycommunity.POSTURL" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
        <activity
            android:name="com.liamwli.spotify.spotifycommunity.PrefActivity"
            android:exported="false"
            android:label="@string/app_name" >
            <intent-filer>
                <action android:name="com.liamwli.spotify.spotifycommunity.PREFACTIVITY" />

                <category android:name="android.intent.cetagory.PREFERENCE" />
            </intent-filer>
        </activity>
        <activity
            android:name="com.liamwli.spotify.spotifycommunity.ClearData"
            android:excludeFromRecents="true"
            android:exported="false"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="com.liamwli.spotify.spotifycommunity.CLEARDATA" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
        <activity
            android:name="com.liamwli.spotify.spotifycommunity.SearchActivity"
            android:exported="false" >
            <intent-filter>
                <action android:name="android.intent.action.SEARCH" />
            </intent-filter>

            <meta-data
                android:name="android.app.searchable"
                android:resource="@xml/searchable" />
        </activity>

        <provider
            android:name="com.liamwli.spotify.spotifycommunity.MySuggestionProvider"
            android:authorities="com.liamwli.spotify.spotifycommunity.MySuggestionProvider"
            android:exported="true" />
    </application>

</manifest>

我的搜索活动：

package com.liamwli.spotify.spotifycommunity;

import android.app.Activity;
import android.app.SearchManager;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.provider.SearchRecentSuggestions;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.webkit.WebView;
import android.widget.Toast;

public class SearchActivity extends Activity {

    WebView wv;
    SharedPreferences prefs;
    SharedPreferences.Editor editor;
    String prefix;

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

        prefs = PreferenceManager.getDefaultSharedPreferences(this);
        editor = prefs.edit();

        wv = (WebView) findViewById(R.id.wVPage);

        if (prefs.getBoolean("desktop_site", false)) {
            prefix = "/?device-view=desktop";
        } else {
            prefix = "/?device-view=mobile";
        }

        // Get the intent, verify the action and get the query
        Intent intent = getIntent();
        if (Intent.ACTION_SEARCH.equals(intent.getAction())) {
            String query = intent.getStringExtra(SearchManager.QUERY);
            SearchRecentSuggestions suggestions = new SearchRecentSuggestions(
                    this, MySuggestionProvider.AUTHORITY,
                    MySuggestionProvider.MODE);
            suggestions.saveRecentQuery(query, null);
            doMySearch(query);
        }
    }

    private void doMySearch(String query) {
        // TODO Auto-generated method stub

        wv.loadUrl("http://community.spotify.com/t5/forums/searchpage/tab/message?q="
                + query + prefix);

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // TODO Auto-generated method stub

        MenuInflater inflater = new MenuInflater(this);
        inflater.inflate(R.menu.activity_main_nosearch, menu);

        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // TODO Auto-generated method stub

        switch (item.getItemId()) {
        case R.id.menu_back:

            if (wv.canGoBack()) {
                wv.goBack();
            } else {
                Toast.makeText(this, "Can't Go Back!", Toast.LENGTH_SHORT)
                        .show();
            }

            break;
        case R.id.menu_forward:

            if (wv.canGoForward()) {
                wv.goForward();
            } else {
                Toast.makeText(this, "Can't Go Forward!", Toast.LENGTH_SHORT)
                        .show();
            }

            break;
        case R.id.menu_refresh:

            wv.reload();

            break;
        case R.id.menu_settings:

            Intent i = new Intent(this, PrefActivity.class);
            startActivity(i);

            break;

        case android.R.id.home:

            wv.loadUrl("http://community.spotify.com" + prefix);

            break;
        }

        return super.onOptionsItemSelected(item);

    }

}

我没有收到强制关闭 - 它只是没有启动搜索活动。

另外，我应该为最终提供者设置什么权限？android系统必须能够执行，

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0 回答 0