On orientation changed view button textview not visible Android
Try add to AndroidManifest.xml configChanges for your Activity
android:configChanges="keyboardHidden|orientation|screenSize"
android:configChanges="keyboardHidden|orientation|screenSize"
<activity android:name=".MainActivity"
android:label="@string/app_name"
android:configChanges="keyboardHidden|orientation|screenSize"
>
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LayoutLib is too recent. Update your tool!
Eclipse Android Graphical layout resolving problem.
Eclipse Android Graphical layout resolving problem.
- Open in Eclipse menu Help ->Check for Updates
- Select updates:
- Press Next and update all
- Restart Eclipse
[caption id="attachment_596" align="alignleft" width="300" caption="Restart Eclipse if updates finished."][/caption]
Canvas, drawLine(), setStrokeWidth(), Paint, setAntiAlias(boolean), onDraw()
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(new SampleView(this));
}
private static class SampleView extends View {
// CONSTRUCTOR
public SampleView(Context context) {
super(context);
setFocusable(true);
}
@Override
protected void onDraw(Canvas canvas) {
canvas.drawColor(Color.YELLOW);
Paint p = new Paint();
// smooths
p.setAntiAlias(true);
p.setColor(Color.RED);
p.setStrokeWidth(4.5f);
// opacity
p.setAlpha(0x80); //
// drawLine (float startX, float startY, float stopX, float stopY,
// Paint paint)
canvas.drawLine(0, 0, 40, 40, p);
canvas.drawLine(40, 0, 0, 40, p);
}
}
}
public boolean isConnected() {
try {
ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
return cm.getActiveNetworkInfo().isConnectedOrConnecting();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
Log.e("isConnected", e.getMessage());
Toast.makeText(getApplicationContext(), e.getMessage(),
Toast.LENGTH_LONG).show();
return false;
}
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
Error for example:
webcoreglue(2075): The real object has been deleted
Solution:
If this error message shows if orientation the screen is changed
try insert into AndroidManifest.xml this code:
android:configChanges="keyboard|keyboardHidden|orientation"
webcoreglue(2075): The real object has been deleted
Solution:
If this error message shows if orientation the screen is changed
try insert into AndroidManifest.xml this code:
android:configChanges="keyboard|keyboardHidden|orientation"
<activity
android:label="@string/app_name"
android:name=".MyActivity"
android:screenOrientation="portrait"
android:configChanges="keyboard|keyboardHidden|orientation"
>
Editace: 2013-11-10 20:31:20
Počet článků v kategorii: 396
Url:on-orientation-changed-view-button-textview-not-visible-android