android-view

问题 Anytime I try to use a CircledImageView (I'm developing on an LG G Watch) my image has a squared background. I get the same result with a DelayedConfirmationView , plus there is no "countdown animation." 回答1: Turns out the issue with the rounding was that I was specifying the layout_width and layout_height in dp instead of using wrap_content . The issue with the "countdown" animation is that there needs to be a border width and color specified. EDIT: Here's a sample of what I was using ( app

问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: When has the Activity finished drawing itself? I want to know when a view completes its drawing, is that possible? How can I understand if android finished drawing a view or not? 回答1: Add a ViewTreeObserver to it. Sample, TextView pagerView1=new TextView(this); ViewTreeObserver textViewTreeObserver=pagerView1.getViewTreeObserver(); textViewTreeObserver.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {

问题 I have a TextView (indicated in green below) and a LinearLayout (indicated in red below) in a RelativeLayout . I want to position the TextView on top of the LinearLayout , like this: However, I tried this: <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="vertical" android:id="@+id/linear_layout"> <!--some other views--> </LinearLayout> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout

问题 I have an application which has 3 fragments. And it works fine viewpager. But I need to implement similar view like in Android Play store. Initially they have "Featured" Tab. When you swipe left we can see "Categories" tab. But half of the screen still filled with "Featured" tab contents. How can I implement that view? Any idea? 回答1: Here is the actual answer. Posting after a long time. Add this method in your adapter: @Override public float getPageWidth(int position) { if (position == 0) {

问题 The lines (A) and the lines (B) in the code below should produce the same image. Yet lines (A) produce instead the image: What is happening? Are View/Canvas transformations applied after rasterization? import android.content.Context; import android.graphics.Canvas; import android.graphics.Paint; import android.graphics.Rect; import android.graphics.RectF; import android.view.View; import android.graphics.Matrix; public class MyView extends View { Paint paint = new Paint(); public MyView

问题 I am creating my own layout based on RelativeLayout as a class in code I have basics of the layout defined in XML R.layout.menu_layout (style, drawable for background, margin, height) If I would not need a class then I would call inflater to do this: RelativeLayout menuLayout = (RelativeLayout)inflater.inflate(R.layout.menu_layout, root); But I would like to be calling my own class instead MenuLayout menuLayout = new MenuLayout(myparams); Since I need to create a class I need to somehow

问题 i am trying to change color of my status bar to white with grey icons. i have tried almost every code solution for this problem but non of them worked for me. i am using this java fucntion to change it and i am also posting my style(21) code. public static void statusBarColor(Window window, Context ctx) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { //Window window = getActivity().getWindow(); window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);

问题 I would like to specify just once in res/values/styles.xml the size of two checkboxes and their four shape drawables res/drawable/cb1_checked.xml res/drawable/cb1_unchecked.xml res/drawable/cb2_checked.xml res/drawable/cb2_unchecked.xml . This way the size would appear one time in the style rather than four in the drawables. Neither of the two attempts below work. Can you suggest a solution? (If you see what's wrong with these two attempts, please do mention it.) -----------------------------

问题 I have a layout memory issue. When I have a large webview it doesn't shows anything and the logcat shows "View too large to fit into drawing cache". The layout is: <ScrollView android:id="@+id/scrollNoticia" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@drawable/ficha_curva" android:layout_below="@+id/linea" android:scrollbars="none" > <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:paddingBottom=

问题 This question already has answers here : How to copy text programmatically in my Android app? (9 answers) Closed 6 years ago . I want to copy some text in temprory memory : TextView tv = (int)findViewById(R.id.txt); String str = tv.getText().toString(); now how an I copy str in clipboard ??? 回答1: Use ClipboardManager int sdk = android.os.Build.VERSION.SDK_INT; if(sdk < android.os.Build.VERSION_CODES.HONEYCOMB) { android.text.ClipboardManager clipboard = (android.text.ClipboardManager)