小编Nul*_*ion的帖子

我被卡住了.当我的应用程序启动时,我想检查我之前设置的警报是否存在.如果没有,那么我想设置它.

我提到了这个解决方案.我试图匹配这样的意图:

Intent intent = new Intent();
        intent.setAction("com.vit.upload");
        PendingIntent pIntent = PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_NO_CREATE);

但它不起作用.还有什么工作？

我创建了一个由ViewSwitcher组成的广告控件....

在该控件中我有ImageView和TextView,因为广告是文本或图像..

现在我必须给advetisements动画..

我试过以下

动画inAnimation = AnimationUtils.loadAnimation(this,android.R.anim.slide_in_left); inAnimation.setDuration(1500);

动画outAnimation = AnimationUtils.loadAnimation(this,android.R.anim.slide_out_right); outAnimation.setDuration(1500);

我把它设置为切换台

ViewSwitcher切换器;

switcher.setInAnimation(inAnimation);

switcher.setOutAnimation(outAnimation);

但它不会工作..

请给我任何其他选择..或者如果使用上面的代码是错误的,那么如何使用它？

我有如下创建的"天"表

"create table days(" +
            "day_id  integer primary key autoincrement, " +
            "conference_id integer , " +
            "day_date text, " +
            "day_start_time text, " +
            "day_end_time text, " +
            "day_summary text, " +
            "day_description text)";

我有如下创建的轨道表

CREATE_TABLE_TRACK = "create table track(" +
        "track_id integer primary key autoincrement," +
        "day_id integer,"+
        "track_name text," +
        "track_description text," +
        " FOREIGN KEY(day_id) REFERENCES days(day_id) ON DELETE CASCADE )";

如上所示,我有外键day_id引用表天的day_id ...

所以我想要的是,如果我删除那一天,那么相应的轨道也应该被删除...但它不会发生在我的情况下..

我有版本3.5.9的 sqlite

而且我在我的帮助类中添加了一行作为

> db.execSQL("PRAGMA foreign_keys = ON;");

但仍然无法工作..请帮帮我..

我正在开发位置跟踪应用程序.但我停止通过做两件事来获得位置更新......

1. locationManager.removeUpdates(本); 和
2. 将locationManager引用设置为null.

这将停止获得我想要的位置坐标...

但问题是gps图标仍在闪烁..这将耗尽设备的电池.

所以请帮我停止这个GPS修复...

我试图通过xml创建我的自定义视图,但屏幕不显示我的视图,它没有膨胀.我的自定义视图xml如下:

 <?xml version="1.0" encoding="utf-8"?>
<ViewSwitcher xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/profileSwitcher"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#FFFFFF" >

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" >

        <ImageView
            android:id="@+id/imgAdvertise"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:src="@android:drawable/btn_minus" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center_horizontal" >

        <TextView
            android:id="@+id/txtAdvertise"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:text="asdas" />
    </LinearLayout>

</ViewSwitcher>

我有我的自定义View类:

public class MyCustomView extends View{

    TextView textAdvertise;
    ImageView imageAdvertise;
    View view;
    ViewSwitcher switcher ;

    public MyCustomView(Context context, AttributeSet attrs) {
        super(context, attrs);
        // TODO Auto-generated constructor stub

        LayoutInflater layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        if (layoutInflater != null) {
            view = layoutInflater.inflate(R.layout.main, null);

        } …

当我按下Android的主页按钮并开始新的活动时,我正面临一些奇怪的问题.

我的堆栈跟踪如下

05-13 18:06:21.182: E/FragmentManager(5674): Failure saving state: active Fragment{411d96d8} has cleared index: -1
05-13 18:06:21.182: E/FragmentManager(5674): Activity state:
05-13 18:06:22.032: E/ACRA(5674): ACRA caught a IllegalStateException exception for com.itgurussoftware.android.dineback. Building report.
05-13 18:06:27.732: E/ACRA(5674): com.itgurussoftware.android.dineback fatal error : Failure saving state: active Fragment{411d96d8} has cleared index: -1
05-13 18:06:27.732: E/ACRA(5674): java.lang.IllegalStateException: Failure saving state: active Fragment{411d96d8} has cleared index: -1
05-13 18:06:27.732: E/ACRA(5674):   at android.support.v4.app.FragmentManagerImpl.saveAllState(FragmentManager.java:1723)
05-13 18:06:27.732: E/ACRA(5674):   at android.support.v4.app.FragmentActivity.onSaveInstanceState(FragmentActivity.java:546)
05-13 18:06:27.732: E/ACRA(5674):   at android.app.Activity.performSaveInstanceState(Activity.java:1113)
05-13 18:06:27.732: E/ACRA(5674):   at android.app.Instrumentation.callActivityOnSaveInstanceState(Instrumentation.java:1185) …

嗨guyzz我有TabActivity跟随简单的代码

public class TabhostActivity extends Activity{
    TabHost host;

    public class TabhostActivity extends Activity{
    TabHost host;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);

        setContentView(R.layout.tablayout);

        host = (TabHost) findViewById(R.id.mytabhost);

        host.setup();
        Intent intent = new Intent(getApplicationContext(), RatingBarActivity.class); 
        TabHost.TabSpec spec = host.newTabSpec("positions").setIndicator("Positions",getResources().getDrawable(R.drawable.add)).setContent(intent);

        host.addTab(spec);
        host.setCurrentTab(0);

    }

并有一个简单的标签布局

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

    <TabHost
        android:id="@+id/mytabhost"
        android:layout_width="match_parent"
        android:layout_height="match_parent" 
        android:padding="5dp">

        <LinearLayout
            android:id="@+id/linearLayout1"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical" 
            android:padding="5dp">

            <FrameLayout
                android:id="@android:id/tabcontent"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_weight="1" 
                android:background="#FF0000">

            </FrameLayout>

            <HorizontalScrollView
                android:id="@+id/horizontalScrollView1"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content" >

                <TabWidget …

我得到了跟踪堆栈跟踪

04-17 12:11:56.378: D/ATRecorder(10379): com.htc.autotest.dlib.RecordEngine in loader dalvik.system.DexClassLoader@40528b78
04-17 12:11:56.408: D/WindowManagerImpl(10379): addView, new view, mViews[0]: com.android.internal.policy.impl.PhoneWindow$DecorView@40520738
04-17 12:11:56.428: D/WindowManagerImpl(10379): addView, new view, mViews[1]: android.widget.LinearLayout@40525d00
04-17 12:11:56.438: D/WindowManagerImpl(10379): finishRemoveViewLocked, mViews[1]: android.widget.LinearLayout@40525d00
04-17 12:11:56.718: D/TAG(10379): Error setting camera preview: setPreviewDisplay failed
04-17 12:11:56.748: D/TAG(10379): Error starting camera preview: setPreviewDisplay failed
04-17 12:12:07.558: D/View(10379): onTouchEvent: viewFlags: 0x18004001
04-17 12:12:07.568: D/View(10379): onTouchEvent: isFocusable: true, isFocusableInTouchMode: false, isFocused: false; focusTaken: false
04-17 12:12:07.588: V/MediaRecorderJNI(10379): start
04-17 12:12:07.598: V/MediaRecorderJNI(10379): getMediaRecorder E
04-17 12:12:11.632: V/MediaRecorderJNI(10379): process_media_recorder_call
04-17 …

嗨朋友想要删除出现在微调器上的单选按钮..这是增加我的对话框的布局大小..在此先感谢..

我正在使用 TextView 在两行中编写文本描述。我正在使用android:gravity="center"居中对齐两行并在 xml 文件中使用android:maxLines="2"&android:ellipsize="end"属性。第一行正常，但在第二行的左侧文本被剪裁了。如果我删除android:ellipsize="end"属性，则没有任何文本剪切。所以我想我的问题是因为 ellipsize 属性。我尝试了很多实验来解决这个问题，但都没有成功。谁能帮我解决我的问题。

我试图设置同步和非同步方法之间的区别..我试过以下代码

 class Counter {
    private int counter = 10;
    public int getCounter() {
        return counter;
    }

    public synchronized void doIncrementAndDecrement() {
        counter++;
        keepBusy(500);
        counter--;
    }

    public void keepBusy(int howLong) { // (D)
        long curr = System.currentTimeMillis();
        while (System.currentTimeMillis() < curr + howLong)
            ;
    }
}

class MyCounterThread extends Thread {

    Counter c;

    public MyCounterThread(Counter c, String name) {
        // TODO Auto-generated constructor stub
        super(name);
        this.c = c;
        start();
    }

    @Override
    public void run() {
        for (;;) {
            c.doIncrementAndDecrement();
            sleepForSometime();
            System.out.println(c.getCounter()); …

我是android开发的初学者.我正在努力使吐司工作,但我发现代码没有任何问题.

这是xml代码.

<LinearLayout
    android:layout_width="wrap_content"
    android:layout_height="50dp"
    android:layout_gravity="center"
    android:layout_marginBottom="20dp"
    android:layout_marginTop="20dp"
    android:gravity="center"
    android:orientation="horizontal" >

    <ImageView
        android:id="@+id/topbar"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/dravaka_dark" />
</LinearLayout>

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="1dp"
    android:background="#3333" >
</LinearLayout>

<LinearLayout
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="left"
    android:layout_marginTop="20dp"
    android:gravity="left"
    android:orientation="vertical"
    android:paddingTop="10dp" >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:padding="5dp" >

        <ImageView
            android:id="@+id/about_icon"
            android:layout_width="50dp"
            android:layout_height="50dp"
            android:layout_margin="10dp"
            android:layout_marginLeft="20dp"
            android:scaleType="fitXY"
            android:src="@drawable/about_icon" />

        <TextView
            android:id="@+id/about_tab"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:layout_marginLeft="20dp"
            android:clickable="true"
            android:text="@string/about_title"
            android:textSize="25sp" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:padding="5dp" >

        <ImageView
            android:id="@+id/schedule_icon"
            android:layout_width="50dp"
            android:layout_height="50dp"
            android:layout_margin="10dp"
            android:scaleType="fitXY"
            android:src="@drawable/schedule_icon" />

        <TextView
            android:id="@+id/schedule_tab"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:layout_marginLeft="20dp"
            android:clickable="true" …