小编Muk*_*nda的帖子

我在Android代码中将图像设置为ImageView而不是xml,但无法确定如何检查该图像是否已在java中设置.

试过imageViewOne.getVisibility() == 0 但它不起作用

如果图像已设置为ImageView,那么我将附加该图像以发送邮件.

我有一个布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="horizontal"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#FFFFFF">

    <TextView android:id="@+id/groupname"
         android:paddingLeft="50px"
         android:textSize="16px"
         android:background="#FFFFFF"
         android:textColor="#000000"
         android:textStyle="normal"
         android:layout_width="wrap_content"
         android:layout_height="50px"/>
     <ImageView
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_gravity="right"
             android:layout_marginRight="6dp"
             android:background="#ffffff" 
             android:src="@drawable/sort"/>

</LinearLayout>

渲染现在正在发生,就像在第一张图像中一样,但我想像第二张图像一样完全右对齐.任何帮助都会有用.

期待你的回复.谢谢.

我们可以在旁边有一个谷歌语音操作按钮edittext,所以每当用户想要在edittext中输入内容时,他只需轻按按钮,说话并进入edittext.我们可以做那样的事情,而不是用户必须点击edittext打开软键盘选择语音操作按钮,然后说出哪些打印到edittext.

期待你的回复.

谢谢.

我有一个布局,我通过WebView在其中呈现HTML文档.

XML布局是

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:fillViewport="true"
android:scrollbars="vertical">

<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">
    <LinearLayout
        android:id="@+id/header"
        android:layout_alignParentTop="true"
        android:layout_width="fill_parent" 
        android:layout_height="30dip"
        android:background="@drawable/black"
        android:tileMode="repeat">
        <ImageButton 
            android:id="@+id/btnBackHelp"
            android:src="@drawable/greenarrow"
            android:layout_width="wrap_content"
            android:layout_height="fill_parent"
            android:background="@drawable/black"
            android:tileMode="repeat"/>
      <ImageView 
          android:src="@drawable/logo"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"/>
         </LinearLayout>
         <LinearLayout 
            android:layout_height="fill_parent"
            android:layout_width="fill_parent" 
            xmlns:android="http://schemas.android.com/apk/res/android" 
            android:orientation="vertical"
            android:layout_marginTop="30dip"> 
         <WebView
            android:layout_height="fill_parent" 
            android:layout_width="fill_parent"
            android:id="@+id/helpBrowserWebview"/>
        </LinearLayout>
        <LinearLayout
        android:layout_alignParentBottom="true"
        android:layout_width="fill_parent" 
        android:layout_height="30dip"
        android:layout_weight="1"
        android:weightSum="5" 
        android:orientation="horizontal"
        android:background="@drawable/black"
        android:tileMode="repeat">

    <LinearLayout 
        android:id="@+id/footerLayoutHome"
        android:clickable="true"
        android:layout_width="fill_parent"
        android:layout_weight="1" 
        android:orientation="vertical"
        android:gravity="center" 
        android:layout_height="fill_parent">

        <ImageButton 
            android:id="@+id/footerMainBtnHome"
            android:layout_width="fill_parent" 
            android:layout_height="14dip"
            android:src="@drawable/home" 
            android:background="@drawable/black"/>
        <TextView 
            android:text="Home" 
            android:textSize="8dip"
            android:textColor="#ffffff"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
    </LinearLayout>
     <LinearLayout 
         android:id="@+id/footerLayoutProducts"
         android:clickable="true"
        android:layout_width="fill_parent"
        android:layout_weight="1" 
        android:orientation="vertical"
        android:gravity="center" …

我在onClick上使用onClick来捕获图像.

PictureCallback myPictureCallback_JPG = new PictureCallback() {

    @Override
    public void onPictureTaken(byte[] arg0, Camera arg1) {

        FileOutputStream outStream = null;
        try {
            // Write to SD Card
            outStream = new FileOutputStream(String.format("/sdcard/%d.jpg", System.currentTimeMillis())); 
            outStream.write(arg0);
            outStream.close();
            Toast.makeText(Photo.this, "Image Saved to SD Card", Toast.LENGTH_SHORT).show();
            System.out.println();
        } catch (FileNotFoundException e) { 
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        camera.startPreview();
    }};

图像保存在SD卡中.然后用户单击"发送"按钮并打开布局,在"单击ImageView"上打开图像库并单击特定图像,将选择URI.

    imageAttachPhoto = (ImageView)findViewById(R.id.imageViewPhotoOne);
    imageAttachPhoto.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View view) {
            Intent intent = new Intent();
            intent.setType("image/*");
            intent.setAction(Intent.ACTION_GET_CONTENT);
            startActivityForResult(Intent.createChooser(intent,"Select Picture"), SELECT_PICTURE);
        } …

我有一个单击按钮的语音识别器意图。

voiceSearch.setOnClickListener(new View.OnClickListener() {

    @Override
    public void onClick(View view) {
        try{
            Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
            intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
                    RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
            intent.putExtra(RecognizerIntent.EXTRA_PROMPT, "Speak Now...");
            startActivityForResult(intent, REQUEST_CODE);
        }
        catch (ActivityNotFoundException e) {
            Log.v("Speech", "Could not find any Speech Recognition Actions");
        }

    }
});

在活动结果中，我的代码为

     @Override
 public void onActivityResult(int requestCode, int resultCode, Intent data) {
     System.out.println("Request code++++++++++++++++++++++++++++"+requestCode);
     System.out.println("Result Code+++++++++++++++++++++++++++++"+resultCode);
     System.out.println("Data++++++++++++++++++++++++++++++++++++"+data);
   System.out.println("Language"+data.getStringExtra(RecognizerIntent.EXTRA_LANGUAGE));
     System.out.println("data.getDataString()"+data.getDataString());
     if (requestCode == REQUEST_CODE && resultCode == RESULT_OK) {
     if (data != null && data.getData() != null) {
            String searchKey = data.getData().toString(); 
            System.out.println("Search …