imageview

问题 I know that changing the ImageView resource is not big deal just using myImageView.setImageResource(mynewImageDrawable) but what I want to do is to check the current ImageSource before changing it. basically, I want to implement my own group radio buttons using imageViews. so every time any imageView is clicked, the oncliked event method will change the Image Resources of my group. and sorry for my poor English. regards, redsea 回答1: There is no getDrawableId function so you'll need to do

问题 I have a requirement where I have an ImageView and a button. http://i1289.photobucket.com/albums/b509/salikclub/Rotate-Last-Start_zps0d2fced8.png I want to rotate the image when I click the button. I need the image with full screen. but when I click the button image will be rotate, but not shown in the full screen. Please see the below link. http://i1289.photobucket.com/albums/b509/salikclub/Rotate-Last1_zps2ccb1326.png After that also when I clicked the button image will rotate. but

问题 I have a requirement where I have an ImageView and a button. http://i1289.photobucket.com/albums/b509/salikclub/Rotate-Last-Start_zps0d2fced8.png I want to rotate the image when I click the button. I need the image with full screen. but when I click the button image will be rotate, but not shown in the full screen. Please see the below link. http://i1289.photobucket.com/albums/b509/salikclub/Rotate-Last1_zps2ccb1326.png After that also when I clicked the button image will rotate. but

问题 I am new in Android. I want to store my bitmap in sharedPreferences. Can anyone tell me how it will possible? Actually my requirements is, I fetch the image from gallery as well as take picture from camera and I set that Bitmap in my ImageView. These all things work properly. But when I click on back button all ImageView will be empty. So I want to store that Bitmaps throughout my application. Can anyone help me? I am very much stuck on this. Thanks. 回答1: Hey friends I got the solution of my

问题 I am developing an android application for hair style salon.I am having two images. One is hairstyle (hair) and another is hair color pattern. I am able to change the color of hair style based on specific rgb value. My code is as below: int color = Color.rgb(182,132, 84); // getting rgb value Paint paint = new Paint(); paint.setColorFilter(new LightingColorFilter(color, 1)); transform.reset(); transform.postTranslate(-width / 2.0f, -height / 2.0f); transform.postRotate(getDegreesFromRadians

问题 I would like to open an Image, in ImageView, from a button press. I need the image to be zoomable and scrollable. How would I best go about accomplishing this? Thank you! The Image can be either PNG or JPG Thank you so much! Here is my new code, you wouldn't mind skimming through and giving me a solution to all my problems with TAG , ZOOM , etc... I also know I need to add my image res to it package com.DS; import java.io.File; import android.app.Activity; import android.content.Intent;

问题 I would like to open an Image, in ImageView, from a button press. I need the image to be zoomable and scrollable. How would I best go about accomplishing this? Thank you! The Image can be either PNG or JPG Thank you so much! Here is my new code, you wouldn't mind skimming through and giving me a solution to all my problems with TAG , ZOOM , etc... I also know I need to add my image res to it package com.DS; import java.io.File; import android.app.Activity; import android.content.Intent;

问题 I'd Like to know how to draw a Line on ImageView as user swipe their finger ? Could any body explain this ? Or perhaps any Link to get start on this. 回答1: You must have your own ImageView and override onDraw function. Use something like this public class MyImageView extends ImageView{ public MyImageView(Context context) { super(context); // TODO Auto-generated constructor stub } @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); Paint p = new Paint(Paint.ANTI_ALIAS_FLAG);

问题 I have an ImageView with android:layout_width=100dp , android:layout_height=wrap_content and android:adjustViewBounds=true It's source is a 50 x 50 px picture. But the aspect ratio is not preserved - height of the ImageView is 50px, not 100px (i.e. adjustViewBounds is not working). If I have a 200x200px picture it works - width and height are 100px. This code results in a 100px wide and 50px tall picture but the src image is square: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns

问题 I am having an OutOfMemory exception with a gallery over 600x800 pixels JPEG's. The environment I've been using Gallery with JPG images around 600x800 pixels. Since my content may be a bit more complex than just images, I have set each view to be a RelativeLayout that wraps ImageView with the JPG. In order to "speed up" the user experience I have a simple cache of 4 slots that prefetches (in a looper) about 1 image left and 1 image right to the displayed image and keeps them in a 4 slot