Android 仿UC瀏覽器詳情頁評論彈框效果

摘要： 大概就這種效果 額，突然發現UC被我解除安裝了，這個是QQ瀏覽器的效果，不過都一樣，如果當前頁面不是全屏的話，把根佈局設為相對佈局，然後設定評論佈局為處於底部，這樣在點選評論時彈開鍵盤會觸發佈局重繪，底部的評論也會處於軟鍵盤的上方，鍵盤訊息，佈局下移...

額，突然發現UC被我解除安裝了，這個是QQ瀏覽器的效果，不過都一樣，如果當前頁面不是全屏的話，把根佈局設為相對佈局，然後設定評論佈局為處於底部，這樣在點選評論時彈開鍵盤會觸發佈局重繪，底部的評論也會處於軟鍵盤的上方，鍵盤訊息，佈局下移，但是我們要說的是全屏的情況下我們如何處理。

首先要監聽到軟體盤彈起，然後再設定評論的popupWindow

import android.app.Activity;
import android.graphics.Rect;
import android.support.v4.app.Fragment;
import android.view.View;
import android.view.ViewTreeObserver;

public class KeyboardStatusDetector {

private static final int SOFT_KEY_BOARD_MIN_HEIGHT = 100;
private KeyboardVisibilityListener mVisibilityListener;

boolean keyboardVisible = false;

public KeyboardStatusDetector registerFragment(Fragment f) {
return registerView(f.getView());
}

public KeyboardStatusDetector registerActivity(Activity a) {
return registerView(a.getWindow().getDecorView().findViewById(android.R.id.content));
}

public KeyboardStatusDetector registerView(final View v) {
v.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
Rect r = new Rect();
v.getWindowVisibleDisplayFrame(r);
//int heightDiff = v.getRootView().getHeight() - (r.bottom - r.top);
int heightDiff = v.getRootView().getHeight() - r.bottom;
LogUtils.e("鍵盤A--->", v.getRootView().getHeight() +""+ r.bottom +""+ r.top);
if (heightDiff > SOFT_KEY_BOARD_MIN_HEIGHT) { // if more than 100 pixels, its probably a keyboard...
if (!keyboardVisible) {
keyboardVisible = true;
if (mVisibilityListener != null) {
mVisibilityListener.onVisibilityChanged(true, heightDiff);
}
}
} else {
if (keyboardVisible) {
keyboardVisible = false;
if (mVisibilityListener != null) {
mVisibilityListener.onVisibilityChanged(false, heightDiff);
}
}
}
}
});

return this;
}

public KeyboardStatusDetector setVisibilityListener(KeyboardVisibilityListener listener) {
mVisibilityListener = listener;
return this;
}

public interface KeyboardVisibilityListener {
void onVisibilityChanged(boolean keyboardVisible, int heightDiff);
}
}

然後再對popupWindow進行設定位置

private void showSendMsgPop() {
if (null == sendMsgPopup) {
sendMsgPopup = new SendMsgPopupWindow(NewsDetailsActivity.this);
}
//設定處於底部
sendMsgPopup.showAtLocation(getWindow().getDecorView(), Gravity.BOTTOM, 0, 0);
}

當然，最後最關鍵的是popupWindow裡的配置，要不然popupWindow會被軟鍵盤遮擋。

@Override
public void dismiss() {
super.dismiss();
// 評論框訊息的同時把軟鍵盤關閉
KeyBoardUtils.closeKeybord(editText, mContext);
}

public void showAtLocation(View parent, int gravity, int x, int y) {
// 這三行配置是關鍵
this.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
this.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE | WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
this.setInputMethodMode(PopupWindow.INPUT_METHOD_NEEDED); // 在顯示輸入法之後呼叫，否則popupwindow會在視窗底層
super.showAtLocation(parent, gravity, x, y);
}