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android scale animation 

public void scaleViewY(View v, float startScale, float endScale) {
    Animation anim = new ScaleAnimation(
            1f, 1f, // Start and end values for the X axis scaling            startScale, endScale, // Start and end values for the Y axis scaling            Animation.RELATIVE_TO_SELF, 0f, // Pivot point of X scaling            Animation.RELATIVE_TO_SELF, 0.5f); // Pivot point of Y scaling    anim.setFillAfter(true); // Needed to keep the result of the animation    anim.setDuration(500);    v.startAnimation(anim);}
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android hide actionbar

public class MainActivity extends Activity { ActionBar actionBar; //声明ActionBar @Override protected void onCreate( Bundle savedInstanceState) { super .onCreate(savedInstanceState); setContentView( R .layout.activity_main); actionBar = getSupportActionBar(); //得 到ActionBar actionBar.hide(); //隐藏ActionBar } }
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go url encoding

func  QueryUnescape func QueryUnescape (s string ) ( string , error ) QueryUnescape does the inverse transformation of QueryEscape, converting %AB into the byte 0xAB and '+' into ' ' (space). It returns an error if any % is not followed by two hexadecimal digits. func  QueryUnescape func QueryUnescape (s string ) ( string , error ) QueryUnescape does the inverse transformation of QueryEscape, converting %AB into the byte 0xAB and '+' into ' ' (space). It returns an error if any % is not followed by two hexadecimal digits.
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