直播平台制作，EditText实现“眼睛”效果
1.准备个EditText
<EditText
android:id="@+id/et_pwd"
android:paddingRight="10dp"
android:drawableRight="@drawable/lol_icon_eye_close"
// 默认关闭的眼睛，这里要先设置图片，以便于调整大小
android:inputType="textPassword"
...
/>
2.实现眼睛开闭
private boolean isHidePwd = true;// 输入框密码是否是隐藏的，默认为true
private void initView(){
et_pwd = (EditText) view.findViewById(R.id.et_pwd);
final Drawable[] drawables = et_pwd.getCompoundDrawables() ;
final int eyeWidth = drawables[2].getBounds().width() ;// 眼睛图标的宽度
final Drawable drawableEyeOpen = getResources().getDrawable(R.drawable.lol_icon_eye_open) ;
drawableEyeOpen.setBounds(drawables[2].getBounds());//这一步不能省略
et_pwd.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
if(event.getAction() == MotionEvent.ACTION_UP){
// getWidth,getHeight必须在这里处理
float et_pwdMinX = v.getWidth() - eyeWidth - et_pwd.getPaddingRight() ;
float et_pwdMaxX = v.getWidth() ;
float et_pwdMinY = 0 ;
float et_pwdMaxY = v.getHeight();
float x = event.getX() ;
float y = event.getY() ;
if(x < et_pwdMaxX && x > et_pwdMinX && y > et_pwdMinY && y < et_pwdMaxY){
// 点击了眼睛图标的位置
isHidePwd = !isHidePwd ;
if(isHidePwd){
et_pwd.setCompoundDrawables(drawables[0] ,
drawables[2] ,
drawables[3]);
et_pwd.setTransformationMethod(PasswordTransformationMethod.getInstance());
}
else {
et_pwd.setCompoundDrawables(drawables[0] ,
drawableEyeOpen ,
drawables[3]);
et_pwd.setTransformationMethod(HideReturnsTransformationMethod.getInstance());
}
}
}
return false;
}
});
...
}
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