小编Sun*_*Sun的帖子

我使用了ActionBar样式生成器,现在尝试使用我的应用程序,但得到:

错误:检索项目的父项时出错:找不到与给定名称"@ style/Theme.AppCompat.Light.DarkActionBar"匹配的资源.

我在libs文件夹中使用android-support-v7-appcompat.jar lib

我的目标是让我的应用兼容2.3或更高版本

我必须在Ubuntu上安装Android Studio,我已经使用过此链接下载Android Studio.

有没有简单的方法在Ubuntu上安装Studio？

当我连续点击"捕获"按钮(没有任何中断)时,获取运行时异常如何解决此问题？

如果它不可能,那我怎么处理这个例外？

btnCapture = (ImageButton) findViewById(R.id.btnCapture);
                final MediaPlayer mp = MediaPlayer.create(CameraLauncherActivity.this, R.raw.button);
                btnCapture.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {

                            // line where getting RuntimeException
                        camera.takePicture(null, null, mPicture);   

                    }
                });

日志:

02-12 14:48:41.580: E/AndroidRuntime(6997): FATAL EXCEPTION: main
02-12 14:48:41.580: E/AndroidRuntime(6997): java.lang.RuntimeException: takePicture failed
02-12 14:48:41.580: E/AndroidRuntime(6997):     at android.hardware.Camera.native_takePicture(Native Method)
02-12 14:48:41.580: E/AndroidRuntime(6997):     at android.hardware.Camera.takePicture(Camera.java:1126)
02-12 14:48:41.580: E/AndroidRuntime(6997):     at android.hardware.Camera.takePicture(Camera.java:1071)
02-12 14:48:41.580: E/AndroidRuntime(6997):     at app.cam.shane.CameraLauncherActivity$3.onClick(CameraLauncherActivity.java:116)
02-12 14:48:41.580: E/AndroidRuntime(6997):     at android.view.View.performClick(View.java:4223)
02-12 14:48:41.580: E/AndroidRuntime(6997):     at android.view.View$PerformClick.run(View.java:17275)
02-12 14:48:41.580: E/AndroidRuntime(6997):     at android.os.Handler.handleCallback(Handler.java:615) …

如何使用按钮显示/隐藏导航抽屉,我已使用此 SO链接来创建和管理导航抽屉.

现在我正在使用(从左侧向右滑动 - 显示)和(从右向左滑动 - 隐藏)

如何使用下面屏幕截图中突出显示的按钮显示/隐藏抽屉:

header_home.xml:

<RelativeLayout        
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_height="wrap_content"
    android:layout_width="fill_parent"
    android:id="@+id/header_layout" 
    android:gravity="fill_horizontal" 
    android:layout_gravity="top|center">


 <TextView
    android:id="@+id/textHeader"
    android:text="Home"
    android:textColor="#ffffff"
    android:gravity="center"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/bg_header"
 />

 <ImageButton
    android:id="@+id/btnDrawer"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginLeft="10dp"
    android:layout_alignParentLeft="true"
    android:layout_centerVertical="true"
    android:adjustViewBounds="true"
    android:background="@drawable/icon_drawer"
    android:contentDescription="@string/app_name"
    />

编辑:

     btnMenu.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            drawer.openDrawer(Gravity.LEFT);                
        }
    });

我知道要关闭我必须打电话drawer.closeDrawer(Gravity.LEFT);但我必须放置此代码？

我正在使用以下链接安装新软件:https://dl-ssl.google.com/android/eclipse/

但总是得到:操作无法完成.看详情.

Cannot complete the install because of a conflicting dependency.
  Software being installed: Android DDMS 23.0.2.1259578 (com.android.ide.eclipse.ddms.feature.feature.group 23.0.2.1259578)
  Software currently installed: Android DDMS 22.6.2.v201403212031-1085508 (com.android.ide.eclipse.ddms.feature.group 22.6.2.v201403212031-1085508)
  Only one of the following can be installed at once: 
    Dalvik Debug Monitor Service 23.0.2.1259578 (com.android.ide.eclipse.ddms 23.0.2.1259578)
    Dalvik Debug Monitor Service 22.6.2.v201403212031-1085508 (com.android.ide.eclipse.ddms 22.6.2.v201403212031-1085508)
  Cannot satisfy dependency:
    From: Android DDMS 23.0.2.1259578 (com.android.ide.eclipse.ddms.feature.feature.group 23.0.2.1259578)
    To: com.android.ide.eclipse.ddms [23.0.2.1259578]
  Cannot satisfy dependency:
    From: Android DDMS 22.6.2.v201403212031-1085508 (com.android.ide.eclipse.ddms.feature.group 22.6.2.v201403212031-1085508)
    To: com.android.ide.eclipse.ddms [22.6.2.v201403212031-1085508]

我按照此代码创建自定义对话框但我没有得到如何删除对话框标题栏？

  AlertDialog alertDialog;

   @Override
   protected Dialog onCreateDialog(int id) {

      AlertDialog dialogDetails = null;

      switch (id) {
      case DIALOG_LOGIN:

       LayoutInflater inflater = LayoutInflater.from(this);
       View dialogview = inflater.inflate(R.layout.dialog_layout, null);

           AlertDialog.Builder dialogbuilder = new AlertDialog.Builder(this);
           dialogbuilder.setTitle("Login");
           dialogbuilder.setView(dialogview);
           dialogDetails = dialogbuilder.create();

           break;
          }

      return dialogDetails;
     }

     @Override
     protected void onPrepareDialog(int id, Dialog dialog) {

      switch (id) {
      case DIALOG_LOGIN:
      alertDialog = (AlertDialog) dialog;

      .......

}

我知道要删除警报对话框的标题区域,我们必须使用 requestWindowFeature(Window.FEATURE_NO_TITLE);

但不知道我必须放在哪里？

    int globalPosition ;

    ..............

    buttonAllData.setOnClickListener(new OnClickListener() { 

    @Override 
    public void onClick(View arg0) { 
    // TODO Auto-generated method stub 
        new UploadBulkData(globalPosition).execute();

        } 
    });

   ........

   class UploadBulkData extends AsyncTask<String, String, String> {
    private ProgressDialog pDialog;
    int dataPosition;

    public UploadBulkData(int position){
     this.dataPosition = position;
    }

    @Override
    protected void onPreExecute() {
      super.onPreExecute();
      pDialog = new ProgressDialog(UploadActivity.this);
      pDialog.setMessage("Uploading...");
      pDialog.setIndeterminate(false);
      pDialog.setCancelable(true);
      pDialog.show();
    }

    @Override
    protected String doInBackground(String... args) {
       .......
       String url = "http://web/uploadBulk.php";
       List<NameValuePair> params = new ArrayList<NameValuePair>();
       params.add(new BasicNameValuePair("UserData", st));

       String resultServer = getHttpPost(url,params); …

每当我调用UploadActivity.java时,我都会收到java.lang.OutOfMemoryError

第176行是:

  Bitmap bm = BitmapFactory.decodeFile(strPath);

查看我的日志:

12-07 17:57:10.585: E/AndroidRuntime(16708): FATAL EXCEPTION: main
12-07 17:57:10.585: E/AndroidRuntime(16708): java.lang.OutOfMemoryError
12-07 17:57:10.585: E/AndroidRuntime(16708):    at android.graphics.BitmapFactory.nativeDecodeStream(Native Method)
12-07 17:57:10.585: E/AndroidRuntime(16708):    at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:650)
12-07 17:57:10.585: E/AndroidRuntime(16708):    at android.graphics.BitmapFactory.decodeFile(BitmapFactory.java:389)
12-07 17:57:10.585: E/AndroidRuntime(16708):    at android.graphics.BitmapFactory.decodeFile(BitmapFactory.java:449)
12-07 17:57:10.585: E/AndroidRuntime(16708):    at com.example.camera.UploadActivity$ImageAdapter.getView(UploadActivity.java:176)
12-07 17:57:10.585: E/AndroidRuntime(16708):    at android.widget.AbsListView.obtainView(AbsListView.java:2465)
12-07 17:57:10.585: E/AndroidRuntime(16708):    at android.widget.ListView.makeAndAddView(ListView.java:1775)
12-07 17:57:10.585: E/AndroidRuntime(16708):    at android.widget.ListView.fillDown(ListView.java:678)
12-07 17:57:10.585: E/AndroidRuntime(16708):    at android.widget.ListView.fillFromTop(ListView.java:739)
12-07 17:57:10.585: E/AndroidRuntime(16708):    at android.widget.ListView.layoutChildren(ListView.java:1628)
12-07 17:57:10.585: E/AndroidRuntime(16708):    at android.widget.AbsListView.onLayout(AbsListView.java:2300)
12-07 17:57:10.585: E/AndroidRuntime(16708):    at …

我想在本地添加一个事件Calendar,在这里我想重复这个事件,Tuesday直到31 December 2015:

btnWeekly.setOnClickListener(new OnClickListener() {

    @Override
    public void onClick(View v) {       
        Calendar calendar = Calendar.getInstance(); 

        Intent intent = new Intent(Intent.ACTION_INSERT)
                .setData(Events.CONTENT_URI)
                .setType("vnd.android.cursor.item/event")
                .putExtra(Events.TITLE, "Tuesdays")
                .putExtra(Events.DESCRIPTION, "Tuesday Specials")
                .putExtra(Events.EVENT_LOCATION, "Lixious Bench")
                .putExtra(Events.RRULE, "FREQ=WEEKLY;BYDAY=Tu;UNTIL=20151231")
                .putExtra(Events.DTSTART, calendar.getTimeInMillis())
                .putExtra(CalendarContract.EXTRA_EVENT_ALL_DAY, true)
                .putExtra(CalendarContract.Events.HAS_ALARM, 1)
                .putExtra(Events.AVAILABILITY, Events.AVAILABILITY_BUSY);
        startActivity(intent);
    }                               
}

问题:在日历中它为每个人显示此事件Thursday,而我tu在我的代码中使用了" "

还有一件事,如果我也想给这个事件的持续时间,如:from 6:00 pm to 9:00 pm仅.

如何在DatePicker对话框中隐藏过去的日期？我不想让用户选择过去的日期

什么是最好的方式？如果我想限制用户只选择未来的日期!

    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        .................................................
        editDate.setOnClickListener(new View.OnClickListener() {

            @SuppressWarnings("deprecation")
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                showDialog(DIALOG_DATE);
            }
        });   

    }

     @Override
        protected Dialog onCreateDialog(int id) {
            switch (id) {
            case DIALOG_DATE:
                return new DatePickerDialog(this, new OnDateSetListener() {

                    @Override
                    public void onDateSet(DatePicker view, int year,
                            int monthOfYear, int dayOfMonth) {
                        dateTime.set(year, monthOfYear, dayOfMonth);
                        editDate.setText(dateFormatter
                                .format(dateTime.getTime()));
                    }
                }, dateTime.get(Calendar.YEAR),
                   dateTime.get(Calendar.MONTH),
                   dateTime.get(Calendar.DAY_OF_MONTH));
            }
            return null;
     }

}