启动然后退出 onCreate onStart onResume onWindowFocusChanged: hasFocus: true onWindowFocusChanged: hasFocus...: true // 按home键 Act1: onWindowFocusChanged: hasFocus: false Act1: onPause Act1: onStop // 再回来 Act1...: onRestart Act1: onStart Act1: onResume Act1: onWindowFocusChanged: hasFocus: true // 按返回键退出act Act1...: hasFocus: true Act1: onStop Act2: onWindowFocusChanged: hasFocus: false Act2: onPause Act1: onRestart...onWindowFocusChanged: hasFocus: false onWindowFocusChanged: hasFocus: true 这里也可以用DialogFragment来做测试。
setContentView(R.layout.activity_main); } @Override public void onWindowFocusChanged(boolean hasFocus...) { super.onWindowFocusChanged(hasFocus); if (hasFocus && Build.VERSION.SDK_INT >= 19) {...代码解释： 1、 onWindowFocusChanged(boolean hasFocus) 方法 Activity生命周期，可以理解为走到这个方法的时候，activity才是真正意义上的显示...当activity显示在栈顶，和用户交互的时候，是有焦点的，hasFocus 为 true 当activity退出栈顶，不和用户交互的时候，是没有焦点的，hasFocus 为 false
在进行Android开发时，有时需要测量控件的宽和高，常用的方式有以下三种： (1)重写onWindowFocusChanged(hasFocus: Boolean)方法，在这个方法内获取控件的宽高 ...当获得焦点时，hasFocus传入true。 失去焦点：当Activity的窗口被其他的窗口覆盖，或者用户按下home键使应用进入后台。当失去焦点时，hasFocus传入false。...width=${width},height=${height}") } }) } override fun onWindowFocusChanged(hasFocus...: Boolean) {//第三种方式 super.onWindowFocusChanged(hasFocus) val width=tv.width val
在onWindowFocusChanged(boolean hasFocus)中获取为好 即覆写Activity的onWindowFocusChanged(boolean hasFocus)方法 XXX_Activity...: @Override public void onWindowFocusChanged(boolean hasFocus) { super.onWindowFocusChanged...(hasFocus); int[] location1 = new int[2] ; view.getLocationInWindow(location1); //获取在当前窗口内的绝对坐标
super.onTouchEvent(event); } /** * activity显示到屏幕则开启动画 */ @Override public void onWindowFocusChanged(boolean hasFocus...) { // TODO Auto-generated method stub super.onWindowFocusChanged(hasFocus); if (hasFocus) loadingAnimation.start...所以，如果想启动界面就自动运行动画，可以在OnWindowFocusChanged(boolean hasFocus)中启动动画。
启动然后退出 onCreate onStart onResume onWindowFocusChanged: hasFocus: true onWindowFocusChanged: hasFocus...: true // 按home键 Act1: onWindowFocusChanged: hasFocus: false Act1: onPause Act1: onStop // 再回来 Act1...[Life]: onCreate [Life]: onStart [Life]: onResume [Life]: onWindowFocusChanged: hasFocus: true // 横屏...: hasFocus: true Act1: onStop Act2: onWindowFocusChanged: hasFocus: false Act2: onPause Act1: onRestart...onWindowFocusChanged: hasFocus: false onWindowFocusChanged: hasFocus: true 这里也可以用 DialogFragment 来做测试
所以重写onWidowFocusChanged方法： @Override public void onWindowFocusChanged(boolean hasFocus) { super.onWindowFocusChanged...(hasFocus); if(hasFocus){ vStepsHorizonListview.setSelection(position); } } 这样问题就完美解决了，，希望能帮助到各位！
setContentView(R.layout.activity_test); } @Override public void onWindowFocusChanged(boolean hasFocus...) { super.onWindowFocusChanged(hasFocus); Loger.e("==onWindowFocusChanged==",TAG + hasFocus...); if(hasFocus) { if(isFirstInWindowFocusChanged){ isFirstInWindowFocusChanged
item.imgDescribe = value } } etContent.setOnFocusChangeListener{_,hasFocus...-> if (hasFocus){ etContent.addTextChangedListener(contentWatcher)...etContent.removeTextChangedListener(contentWatcher) } } imgDescribe.setOnFocusChangeListener{_,hasFocus...-> if (hasFocus){ imgDescribe.addTextChangedListener(describeWatcher)
Build.VERSION_CODES.KITKAT) @Override public void onFocusChange(View v, boolean hasFocus...) { // 当hasFocus = true 是获取焦点 if (hasFocus && !...Build.VERSION_CODES.KITKAT) @Override public void onFocusChange(View v, boolean hasFocus...) { // 当hasFocus = true 是获取焦点 if (hasFocus && !
方法1 - 在Activity的onWindowFocusChanged获取宽高 @Override public void onWindowFocusChanged(boolean hasFocus)...{ super.onWindowFocusChanged(hasFocus); // 在这里我们可以获取到View的真实宽高 Log.d(TAG, "onWindowFocusChanged...@Override public void onWindowFocusChanged(boolean hasFocus) { super.onWindowFocusChanged(hasFocus
的焦点变化改变图片的显示与否，输入框里的字符串长度如果大于0，显示，否则隐藏 * by Hankkin at:2015年8月11日 16:32:47 * @param v * @param hasFocus...*/ @Override public void onFocusChange(View v, boolean hasFocus) { if (hasFocus
目前经过测试可用的方法是： /* * 对于：Activity * 覆写 onWindowFocusChanged(boolean hasFocus)方法 */ @Override...public void onWindowFocusChanged(boolean hasFocus) { super.onWindowFocusChanged(hasFocus);
滑动实现了，但启停时机也很重要 所以这里选用onWindowFocusChanged因为它在窗体失去和获得焦点的时候会通知我们 override fun onWindowFocusChanged(hasFocus...: Boolean) { super.onWindowFocusChanged(hasFocus) if (hasFocus){ bannerVp.postDelayed
focusChanger = new OnFocusChangeListener() { @Override public void onFocusChange(View v, boolean hasFocus...hasFocus && myAddress.getStreet().length() > 0) { jiequText.setVisibility(View.GONE... jiequTextView.setText(myAddress.getStreet()); } if (hasFocus...hasFocus && myAddress.getName().length() > 0) { nameText.setVisibility(View.GONE...hasFocus && myAddress.getPhone().length() > 0) { phoneText.setVisibility(View.GONE
/** * 方案一 * 当 View 初始化完毕是回调 * 当 Activity 每次获取和失去焦点时回调 * @param hasFocus */ @Override public void...onWindowFocusChanged(boolean hasFocus) { super.onWindowFocusChanged(hasFocus); getViewSize("
bannerVp.currentItem bannerVp.postDelayed(this,1000) } }override fun onWindowFocusChanged(hasFocus...: Boolean) { super.onWindowFocusChanged(hasFocus) if (hasFocus){ bannerVp.postDelayed
：onWindowFocusChanged 方法会在activity获得焦点和失去焦点的时候调用 @Override public void onWindowFocusChanged(boolean hasFocus...) { super.onWindowFocusChanged(hasFocus); if (hasFocus) { int w = progesssValue.getMeasuredWidth
于是重写方法： @Override public void dispatchWindowFocusChanged(boolean hasFocus) { try {...super.dispatchWindowFocusChanged(hasFocus); } catch (Exception e) { e.printStackTrace
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