Show keyboard in WebView Android example
Show keyboard if WebView input have focus Android apps development example source code.
WebView webview;
//in onCreate
webview = (WebView) findViewById(R.id.idWebviewPda);
webview.getSettings().setJavaScriptEnabled(true);
webview.loadUrl("//android.okhelp.cz");
webview.requestFocus(View.FOCUS_DOWN);
webview.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
case MotionEvent.ACTION_UP:
if (!v.hasFocus()) {
v.requestFocus();
}
break;
}
return false;
}
});
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Copy file to another
Copy and compress file
File path = Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_PICTURES);
File file = new File(path, "MyPicture.jpg");
// the Pictures directory exists?
path.mkdirs();
InputStream is = getResources().openRawResource(R.drawable.flower_blue);
OutputStream os = new FileOutputStream(file);
byte[] data = new byte[is.available()];
is.read(data);
os.write(data);
is.close();
os.close();
Copy and compress file
Bitmap bitmapOrg = BitmapFactory.decodeResource(getResources(),
R.drawable.flower_blue);
try {
FileOutputStream out = new FileOutputStream("new_bitmap.jpg");
bitmapOrg.compress(Bitmap.CompressFormat.JPEG, 90, out);
} catch (Exception e) {
e.printStackTrace();
Log.e("saveBitmap", e.getMessage());
}
Basic shortcuts for Android Emulator.
More about Android Emulator
Emulated Device Key | Keyboard Key |
---|---|
Home | HOME |
Menu (left softkey) | F2 or Page-up button |
Star (right softkey) | Shift-F2 or Page Down |
Back | ESC |
Call/dial button | F3 |
Hangup/end call button | F4 |
Search | F5 |
Power button | F7 |
Audio volume up button | KEYPAD_PLUS, Ctrl-5 |
Audio volume down button | KEYPAD_MINUS, Ctrl-F6 |
Camera button | Ctrl-KEYPAD_5, Ctrl-F3 |
Switch to previous layout orientation (for example, portrait, landscape) | KEYPAD_7, Ctrl-F11 |
Switch to next layout orientation (for example, portrait, landscape) | KEYPAD_9, Ctrl-F12 |
Toggle cell networking on/off | F8 |
Toggle code profiling | F9 (only with -trace startup option) |
Toggle fullscreen mode | Alt-Enter |
Toggle trackball mode | F6 |
Enter trackball mode temporarily (while key is pressed) | Delete |
DPad left/up/right/down | KEYPAD_4/8/6/2 |
DPad center click | KEYPAD_5 |
Onion alpha increase/decrease | KEYPAD_MULTIPLY(*) / KEYPAD_DIVIDE(/) |
More about Android Emulator
If you do click on Rebuid project menu item, this operation maybe consume long time on slovly PC.
Some errors dismis when you do rebuild project, or module.
Try this:
Select module where contains red error code and press Debugg or Run button on Android Studio.
If module code contains errors, Android Studio show error report in gradle console.
If not, apk will installed on device.
This is 10 times faster than Clean - Rebuild all project.
Some errors dismis when you do rebuild project, or module.
Try this:
Select module where contains red error code and press Debugg or Run button on Android Studio.
If module code contains errors, Android Studio show error report in gradle console.
If not, apk will installed on device.
This is 10 times faster than Clean - Rebuild all project.
drawRect(), Paint, setStroke(), setStyle(), Canvas example source code.
@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.CYAN);
Paint p = new Paint();
// smooths
p.setAntiAlias(true);
p.setColor(Color.RED);
p.setStyle(Paint.Style.STROKE);
p.setStrokeWidth(4.5f);
// opacity
//p.setAlpha(0x80); //
//drawRect (float left, float top, float right, float bottom, Paint paint)
canvas.drawRect(10, 10, 30, 30, p);
}
}
}
- create div with class with name e.g. circle
- create in styleSheet.css class circle
html code
<div class="circle" id="">3</div>
css code
.circle {
border-radius: 50%;
width: 50px;
height: 50px;
background: yellow;
position: absolute;
display: block;
border: 6px solid blue;
font-size: 50px;
text-align: center;
}
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Editace: 2013-12-09 13:25:02
Počet článků v kategorii: 396
Url:webview-keyboard