《自用》

需要做一个聊天页面，就需要实现点击发送按钮不把键盘隐藏，点击空白位置隐藏。找了一些方法无法实现，最后找到一种方法，重写dispatchTouchEvent方法：（如有不对请谅解）

/*重写dispatchTouchEvent实现点击发送按钮键盘不会消失*/
@Override
public boolean dispatchTouchEvent(MotionEvent event) {// TextView tvSend = chatKeyboard.getTvSend();tvSend为发送按钮int[] leftTop = {0, 0};//获取输入框当前的location位置发送按钮.getLocationInWindow(leftTop);int left = leftTop[0];int top = leftTop[1];int bottom = top + 发送按钮.getHeight();int right = left + 发送按钮.getWidth();int x = (int)event.getX();int y = (int)event.getY();if (x > left && x < right && y > top && y < bottom) {// 点击的是发送按钮，保留点击EditText的事件// 必不可少，否则所有的组件都不会有TouchEvent了if (getWindow().superDispatchTouchEvent(event)) {return true;}return onTouchEvent(event);}handlerOtherTypeDispatchTouchEvent(event);return false;
}
private boolean handlerOtherTypeDispatchTouchEvent(MotionEvent event) {int action = event.getAction();if (action == MotionEvent.ACTION_DOWN) {View v = getCurrentFocus();if (isShouldHideInput(v, event)) {InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);if (imm != null) {imm.hideSoftInputFromWindow(v.getWindowToken(), 0);}}return super.dispatchTouchEvent(event);} else if (action == MotionEvent.ACTION_MOVE) {}// 必不可少，否则所有的组件都不会有TouchEvent了if (getWindow().superDispatchTouchEvent(event)) {return true;}return onTouchEvent(event);
}
public boolean isShouldHideInput(View v, MotionEvent event) {if (v != null && (v instanceof EditText)) {int[] leftTop = {0, 0};//获取输入框当前的location位置v.getLocationInWindow(leftTop);int left = leftTop[0];int top = leftTop[1];int bottom = top + v.getHeight();int right = left + v.getWidth();if (event.getX() > left && event.getX() < right&& event.getY() > top && event.getY() < bottom) {// 点击的是输入框区域，保留点击EditText的事件return false;} else {//使EditText触发一次失去焦点事件v.setFocusable(false);v.setFocusableInTouchMode(true);return true;}}return false;
}

还有另外一种方法：（自测不是很管用，需要点击一次按钮后才会生效）

 InputMethodManager imm = (InputMethodManager) getSystemService(INPUT_METHOD_SERVICE);
imm.showSoftInput(按钮, InputMethodManager.SHOW_FORCED);
按钮.requestFocus();

感谢提供帮助：

https://blog.csdn.net/xiayuexingkong/article/details/79115193

其他方法网址：

https://blog.csdn.net/qq_34198206/article/details/82983145?utm_medium=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-2.nonecase&depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-2.nonecase