imageview

问题 Android devs! 1) I have tried to compare a string-array declared in my string.xml (I don't know if it's possible): <string-array name="menu_array"> <item>Pizzas</item> <item>Baguetes</item> <item>Calzones</item> <item>Esfihas</item> <item>Refrigerantes</item> <item>Vinhos</item> <item>Cervejas</item> </string-array> 2) I have a layout with an ImageView, to update images corresponding to each menu item string-array: <ImageView xmlns:android="http://schemas.android.com/apk/res/android" android

问题 I'm displaying a bitmap on Inside the ImageView and using the Canvas . ImageView : it display the whole image not matter how large the image, it compress bitmap within the width/height of Imageview. Canvas : canvas draw the bitmap but if the bitmap is larger it goes out of screen. How to same behavior for bitmap on canvas like Imageview display.? 回答1: To resize a bitmap take a look at drawBitmap method in the canvas, Each overloaded method allows you to specify a size. For example here is the

问题 EDIT i updated the code to reflect changes suggested in both answers, unfortunately, now my app force closes. the error is listed at the bottom this is my camera/picture class in its entirety (except for import s) this class is supposed to take a picture, display it to the screen, and let another class have the string path of the picture for use as an attachment. it takes the picture fine, it emails the picture fine, but i cannot figure out how to make it display the picture after its taken.

问题 I develop a App with ffmpeg to decode a media frame. I filled a Bitmap object with the decode result and use ImageView.setImageBitmap to display the bitmap. In Android 2.3 it works well, but in Android 4.0 or up it doesn't work. The code is simply : imgVedio.setImageBitmap(bitmapCache);//FIXME:in 4.0 it displays nothing Then I tried write the Bitmap to a file and reload the file to display. String fileName = "/mnt/sdcard/myImage/video.jpg"; FileOutputStream b = null; try { b = new

问题 I have a RelativeLayout for a row that goes inside a ListView . The row looks like, <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/relativeLayout1" android:layout_width="wrap_content" android:layout_height="fill_parent"> <ImageView android:id="@+id/placeDetailIcon_Img" android:layout_height="50dp" android:layout_width="50dp" android:layout_alignParentLeft="true" android:paddingBottom="20dp" android:paddingTop="20dp" android:paddingLeft="20dp"

问题 Been trying to center a logo inside my toolbar. When i navigate to the next activity, the "up affordance" icon is present, and it will push my logo slightly to the right. How can I keep my logo at the center of the toolbar, without removing the up affordance icon? This is my toolbar tag <android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_height="wrap

问题 i know how to set image/icon from our res/drawable <ImageView android:id="@+id/ImageSearch" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/android_green_3d"/> If we set it directly from the code: imageView1.setImageResource(R.drawable.android_green_3d); But we can also get the icon from android.R.drawable like this: imageView1.setImageResource(android.R.drawable.ic_menu_more); How to set image/icon in xml id the source is android.R.drawable?

问题 I am working in an app that shows different cars and the user needs to choose one. When you press on next the car moves out of the screen and the new one comes in. My resources are: Car's body Car's wheel (I need them to be separated because when the car moves I need to rotate the wheels) I wanted to avoid AbsoluteLayout so my CarView extends `RelativeLayout. Here's the code: public class CarView extends RelativeLayout { private ImageView mBody; private ImageView mLeftWheel; private ImageView

问题 I am trying to make a small image appear on my screen. I want it to be a small square. With the below code, it shows up as a long flat rectangle. I have attached a picture of what it looks like below. java code ImageView q1Image = (ImageView)findViewById(R.id.q1Image); q1Image.setScaleType(ScaleType.FIT_XY); xml code <TableRow android:id="@+id/row4" android:layout_width="0dip" android:layout_height="wrap_content" android:layout_weight="1" > <ImageView android:id="@+id/q1Image" android:layout

问题 I have an imageview that can be zoomed. I have a code that works well, but my problem is that I want to add a limit for maximum and minimum zooming levels. import android.annotation.TargetApi; import android.app.ActionBar; import android.app.Activity; import android.graphics.Matrix; import android.graphics.PointF; import android.os.Build; import android.os.Bundle; import android.util.FloatMath; import android.util.Log; import android.view.MenuItem; import android.view.MotionEvent; import