Question

我开发了简单的图像应用程序，假设从左向右滑动图像。阅读此链接后http://developer.android.com/training/sharing/shareaction.html#set-share-intent。我在mainActivity.java中实现了代码。此代码假设在操作栏的顶部显示共享选项。但是，我在这个代码附近得到了一个小黄灯..private void setShareIntent（Intent shareIntent）{...这是什么意思..以下是我的mainActivity.java代码..

   import android.app.Activity;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.support.v4.view.ViewPager;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ShareActionProvider;




public class MainActivity extends Activity {

    MediaPlayer oursong;

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
      oursong = MediaPlayer.create(MainActivity.this, R.raw.a);
      oursong.start ();
    ViewPager viewPager = (ViewPager) findViewById(R.id.view_pager);
    ImageAdapter adapter = new ImageAdapter(this);
    viewPager.setAdapter(adapter);
  }

  private ShareActionProvider mShareActionProvider;



  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
      // Inflate menu resource file.
      getMenuInflater().inflate(R.menu.activity_main, menu);

      // Locate MenuItem with ShareActionProvider
      MenuItem item = menu.findItem(R.id.menu_item_share);

      // Fetch and store ShareActionProvider
      mShareActionProvider = (ShareActionProvider) item.getActionProvider();

      // Return true to display menu
      return true;
  }



     @Override
     protected void onPause(){
     super.onPause();
      oursong.release();
 }

}

错误问题

Description Resource    Path    Location    Type
[Accessibility] Missing contentDescription attribute on image   fullimage.xml   /Grid View/res/layout   line 6  Android Lint Problem

Description Resource    Path    Location    Type
<uses-sdk> tag should specify a target API level (the highest verified version; when running on later versions, compatibility behaviors may be enabled) with android:targetSdkVersion="?"   AndroidManifest.xml /Copy of galleryDemo    line 7  Android Lint Problem

Description Resource    Path    Location    Type
Not targeting the latest versions of Android; compatibility modes apply. Consider testing and updating this version. Consult the android.os.Build.VERSION_CODES javadoc for details.    AndroidManifest.xml /DailySounds    line 8  Android Lint Problem

Description Resource    Path    Location    Type
Should explicitly set android:allowBackup to true or false (it's true by default, and that can have some security implications for the application's data)  AndroidManifest.xml /Copy of galleryDemo    line 10 Android Lint Problem

Description Resource    Path    Location    Type
The value of the field MainActivity.mShareActionProvider is not used    MainActivity.java   /Copy of ViewpagerImageGallery/src/com/manishkpr/viewpagerimagegallery  line 29 Java Problem

Description Resource    Path    Location    Type
This method has a constructor name  MainActivity.java   /SecondActivityApp/src/com/secondactivityapp    line 28 Java Problem

Description Resource    Path    Location    Type
Use a layout_height of 0dp instead of wrap_content for better performance   fullimage.xml   /Grid View/res/layout   line 9  Android Lint Problem

的Manifest.xml

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

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="16" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.manishkpr.viewpagerimagegallery.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>
    </application>

</manifest>

Answer 1

如果该行旁边只有一个“黄灯”图标，那么它只是一个警告。无论如何，你的程序都会顺利运行，但它只是声明你的程序中的任何地方都没有使用它（它被放置在那里不必要）所以你应该尝试删除那一行。如果您的程序仍然顺利运行，那么您就完成了。

来自mainactivity的SetShareIntent从不在本地使用..这是什么意思？

1 个答案: