Settings for displaying the title bar and status bar of Android & amp; Button or Ima

2. Hide the title bar
// Call this method before Activity. setCurrentView ();
Private void HideTitle (){
RequestWindowFeature (Window. FEATURE_NO_TITLE );
}
Or
RequestWindowFeature (Window. FEATURE_NO_TITLE); // The title is not displayed on the page.

2. Hide the status bar (full screen) www.2cto.com
// Call this method before Activity. setCurrentView ();
Private void HideStatusBar (){
// Hide the title
RequestWindowFeature (Window. FEATURE_NO_TITLE );
// Define full-screen parameters
Int flag = WindowManager. LayoutParams. FLAG_FULLSCREEN;
// Obtain the window object
Window myWindow = this. getWindow ();
// Set the Flag ID
MyWindow. setFlags (flag, flag );
}
Or
RequestWindowFeature (Window. FEATURE_NO_TITLE); // The title is not displayed on the page.
GetWindow (). setFlags (WindowManager. LayoutParams. FLAG_FULLSCREEN,
WindowManager. LayoutParams. FLAG_FULLSCREEN); // sets the full screen display.
2. Background transparency of Button or ImageButton
Translucent <Button android: backg
"#00000000".../>
The color and opacity (alpha) values are expressed in hexadecimal notation. The value range of any color is 0 to 255 (00 to ff ).
For alpha, 00 indicates completely transparent, and ff indicates completely opaque. The expression order is "aabbggrr", where "aa = alpha", "bb = blue", "gg = green", and "rr = red ".
For example, if you want to apply a blue opacity of 50% to a stack, specify the following value: 7fff0000
2. Set the background image transparency (Java code)
View v = findViewById (R. id. content); // locate the id of layout where you want to set a transparent background
V. getBackground (). setAlpha (100); // 0 ~ 255 transparency Value
Author: t80t90s