小编Son*_*ali的帖子

如何在选中时更改标签的颜色,请参见下面的屏幕截图:

我在ActionBar中显示橙色,同样我想用橙色代替浅蓝色.

要在ActionBar背景中显示橙色,我使用下面的代码:

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

    <style name="Theme.MyAppTheme" parent="android:style/Theme.Holo.Light">
         <item name="android:actionBarStyle">@style/Theme.MyAppTheme.ActionBar</item>
    </style>

   <style name="Theme.MyAppTheme.ActionBar" parent="android:style/Widget.Holo.Light.ActionBar">
        <item name="android:background">#FF4444</item>
    </style>

</resources>

我使用此源代码创建了一个自定义相机应用程序,但在少数设备上(如在高分辨率设备上)我得到:

RuntimeException setParameters failed

由于这个原因,我面临这个例外:

params.setPictureSize(1200, 900);

而且我注意到,如果我使用(1600, 1200)而不是(1200, 900)那时候我没有遇到这样的问题

logcat的:

11-07 11:45:20.630: E/AndroidRuntime(3827): FATAL EXCEPTION: main
11-07 11:45:20.630: E/AndroidRuntime(3827): java.lang.RuntimeException: Unable to resume activity {pl.gatti.dgcam/pl.gatti.dgcam.DgCamActivity}: java.lang.RuntimeException: setParameters failed
11-07 11:45:20.630: E/AndroidRuntime(3827):     at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2825)
11-07 11:45:20.630: E/AndroidRuntime(3827):     at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2854)
11-07 11:45:20.630: E/AndroidRuntime(3827):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2318)
11-07 11:45:20.630: E/AndroidRuntime(3827):     at android.app.ActivityThread.access$600(ActivityThread.java:144)
11-07 11:45:20.630: E/AndroidRuntime(3827):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1317)
11-07 11:45:20.630: E/AndroidRuntime(3827):     at android.os.Handler.dispatchMessage(Handler.java:99)
11-07 11:45:20.630: E/AndroidRuntime(3827):     at android.os.Looper.loop(Looper.java:152)
11-07 11:45:20.630: E/AndroidRuntime(3827):     at android.app.ActivityThread.main(ActivityThread.java:5132)
11-07 11:45:20.630: E/AndroidRuntime(3827):     at java.lang.reflect.Method.invokeNative(Native …

如何在Google Map中绘制弧形折线？

我已经使用此代码创建了弯曲的折线.

以下是绘制弯曲折线的方法:

private void showCurvedPolyline (LatLng p1, LatLng p2, double k) {
    //Calculate distance and heading between two points
    double d = SphericalUtil.computeDistanceBetween(p1,p2);
    double h = SphericalUtil.computeHeading(p1, p2);

    //Midpoint position
    LatLng p = SphericalUtil.computeOffset(p1, d*0.5, h);

    //Apply some mathematics to calculate position of the circle center
    double x = (1-k*k)*d*0.5/(2*k);
    double r = (1+k*k)*d*0.5/(2*k);

    LatLng c = SphericalUtil.computeOffset(p, x, h + 90.0);

    //Polyline options
    PolylineOptions options = new PolylineOptions();
    List<PatternItem> pattern = …

我使用的是Windows 10并安装了node-v6.9.1-x64.

这是我试图为Android平台构建的项目链接,为此我遵循那里提到的步骤,如:

1. 首先,我已下载此项目并解压缩到D盘中的Ionic文件夹并将其重命名为IonicUserBase

2. 其次,我已经安装了Ionic和Cordova,所以我直接开始导航到项目

3. 第三,安装所有依赖项,我正在使用:npm install

但无法安装dependecies ....请参阅下面的完整日志

D:\>cd Ionic

D:\Ionic>cd IonicUserBase

D:\Ionic\IonicUserBase>npm install
npm WARN deprecated gulp-minify-css@0.3.13: Please use gulp-clean-css
npm WARN deprecated minimatch@2.0.10: Please update to minimatch 3.0.2 or higher to avoid a RegExp DoS issue
npm WARN deprecated minimatch@0.2.14: Please update to minimatch 3.0.2 or higher to avoid a RegExp DoS issue
npm WARN deprecated graceful-fs@1.2.3: graceful-fs v3.0.0 and before will fail on node releases >= v7.0. Please update to graceful-fs@^4.0.0 as soon as …

我有问题,在尝试将原始文件夹中的音频文件复制到SD卡时,我已成功在SD卡中创建文件夹,但无法复制歌曲...

我正在使用本教程:http://www.androidhive.info/2012/03/android-building-audio-player-tutorial/

 String path = Environment.getExternalStorageDirectory() + "/PriyankaChopra" ;
    File dir = new File(path);
     try{
       if(dir.mkdir()) {
           final int[] mSongs = new int[] { R.raw.exotic, R.raw.pyaar, R.raw.tinka };
            for (int i = 0; i < mSongs.length; i++) {
                try {
                     String str_song_name= i +".mp3";
                     CopyRAWtoSDCard(mSongs[i], "/sdcard/PriyankaChopra/"+str_song_name);
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }   
       } else {
          System.out.println("Error, while Copying songs to SD Card!");

       }
     }catch(Exception e){
       e.printStackTrace();
     }

    }   

    private void …

我正在使用SurfaceView并使用此源代码，但是每当我背靠背拍摄图像时，都会得到：

mediaserver's remote binder Camera object died
Camera service died!
Camera Error 100

日志说：

    11-06 12:11:49.691: I/Choreographer(18462): Skipped 38 frames!  The application may be doing too much work on its main thread.
11-06 12:11:49.692: I/SurfaceView(18462): updateWindow -- OnPreDrawListener, mHaveFrame = true
11-06 12:11:50.372: I/View(18462): Touch down dispatch to android.widget.Button{41dfb4a8 VFED..C. ......I. 0,0-160,480 #7f050003 app:id/ibCapture}, event = MotionEvent { action=ACTION_DOWN, id[0]=0, x[0]=76.10486, y[0]=153.67984, toolType[0]=TOOL_TYPE_FINGER, buttonState=0, metaState=0, flags=0x0, edgeFlags=0x0, pointerCount=1, historySize=0, eventTime=9951837, downTime=9951837, deviceId=3, source=0x1002 }
11-06 12:11:50.386: I/SurfaceView(18462): updateWindow …

如何在Android中制作简单的ListView,我正在制作一个程序,我在这个样式中获取ListView:

Adapter.xml:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginBottom="5dp"
    android:layout_marginLeft="10dp"
    android:layout_marginRight="10dp"
    android:layout_marginTop="5dp"
    android:gravity="center_vertical"
    android:padding="5dip" >

    <!-- Title Of Song-->

    <TextView
        android:id="@+id/title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_centerVertical="false"
        android:text="Name"
        android:textSize="15dip"
        android:typeface="sans" />

    </RelativeLayout>

Activity.xml:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"    
    >

   <ListView
        android:id="@+id/listView1"
        android:layout_below="@+id/text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:divider="@android:color/black"
        android:dividerHeight="1dp"
        android:layout_marginLeft="10dp"
        android:layout_marginRight="10dp"
        android:layout_marginTop="20dp"/>

</RelativeLayout>

但是我想制作这种简单的List [相同的List SHAPE],请看下面的屏幕: