Android Error: Converting to string: TypedValue{t=0x10/d=0xe a=-1}
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Converting to string: TypedValue{t=0x10/d=0xe a=-1}
- 14
// error
- "18"
// ok
397LW NO topic_id
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Další témata ....(Topics)
The exact physical pixels per inch of the screen
Get size of pixel
Get DPI
Get count of pixels per inch
Get size of pixel
Get DPI
Get count of pixels per inch
float mXDpi;
float mYDpi;
DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
mXDpi = metrics.xdpi; // The exact physical pixels per inch of the screen in the X dimension.
mYDpi = metrics.ydpi;
float mMetersToPixelsX = mXDpi / 0.0254f; // 1 inch == 0.0254 metre
float mMetersToPixelsY = mYDpi / 0.0254f;
Activity.java
\res\layout\main.xml
location TouchImageView\src\cz\okhelp\TouchImageView\TouchImageView.java
public class A extends Activity{
Bitmap bm;
TouchImageView touch;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
bm = BitmapFactory.decodeResource(getResources(), R.drawable.chinese_sky_map);
touch = (TouchImageView)findViewById(R.id.myImageView);
touch.setImageBitmap(bm);
}
}
\res\layout\main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="//schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello" />
<cz.okhelp.TouchImageView.TouchImageView
android:id="@+id/myImageView"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
</LinearLayout>
location TouchImageView\src\cz\okhelp\TouchImageView\TouchImageView.java
public class TouchImageView extends ImageView {
Context context;
// constructor wihtout using *.xml file
// public TouchImageView(Context context) {
// super(context);
// }
// constructor with xml file
public TouchImageView(Context context, AttributeSet attrs)
{
super(context, attrs);
super.setClickable(true);
this.context = context;
}
}
Zipalign.exe path on Windows:
c:\Program Files\Android\android-sdk-windows\tools\zipalign.exe
How do signs .apk with your private key - image:
More about Zipalign android.com
c:\Program Files\Android\android-sdk-windows\tools\zipalign.exe
zipalign [-f] [-v] <alignment> infile.apk outfile.apk
// command line in Total Commander
zipalign.exe -f -v 4 infile.apk outfile.apk
When using Eclipse with the ADT plugin, the Export Wizard will automatically zipalign your .apk after it signs it with your private key.
How do signs .apk with your private key - image:





More about Zipalign android.com
Terms Screen size, density, density independent pixel, resolution as a picture - pictogram.
Test your knowledge
Q: How to find out the phone screen size?
A: (By length of display diagonale in inch - Not to measure a diagonal of device!!!)
Q: What resolution has 720 x 1280 display?
A: (921600 pixels)
Q: What does it mean "240 dpi" screen density?
A: (Display have density 240 x 240 dots - "Tri-color LED etc." - per every physical (real) square inch. If you have icon 240x240 pixels, this will just occupy an area of one square inch on the display.)
Q: Phone have screen density 240 dpi. Image for 160 dpi screen density have size 128x 128 pixels. What will be the size of the image for 240 dpi screen density?
A: (Calculate the virtual pixels size. 128 * (240/160) = 192. You have to resize image to new size 192 x 192 physical pixels and put into folder drawable-hdpi (high) ~240dpi for phone with screen density 240 dpi. ) or use density independend pixels 128dp x 128dp.

Test your knowledge
Q: How to find out the phone screen size?
A: (By length of display diagonale in inch - Not to measure a diagonal of device!!!)
Q: What resolution has 720 x 1280 display?
A: (921600 pixels)
Q: What does it mean "240 dpi" screen density?
A: (Display have density 240 x 240 dots - "Tri-color LED etc." - per every physical (real) square inch. If you have icon 240x240 pixels, this will just occupy an area of one square inch on the display.)
Q: Phone have screen density 240 dpi. Image for 160 dpi screen density have size 128x 128 pixels. What will be the size of the image for 240 dpi screen density?
A: (Calculate the virtual pixels size. 128 * (240/160) = 192. You have to resize image to new size 192 x 192 physical pixels and put into folder drawable-hdpi (high) ~240dpi for phone with screen density 240 dpi. ) or use density independend pixels 128dp x 128dp.
Foreach in Java basic example source code.
MainClass.java
MainClass.java
public class MainClass {
public static void main(String[] arg) {
String[] arrayOfString = { "Hello", "people", "hello", "world!" };
for (String s : arrayOfString)
System.out.println(s);
}
}
Editace: 2014-02-15 20:15:44
Počet článků v kategorii: 397
Url:android-error-converting-to-string-typedvaluet0x10d0xe-a-1
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