EditText被軟鍵盤遮擋解決方案

最后的效果就是標(biāo)題欄不被頂上去洋机，并且EditText不能被軟件盤遮擋睹限，廢話不多說，直接上代碼：

import android.app.Activity;
import android.graphics.Rect;
import android.os.Build;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewTreeObserver;`
import android.view.WindowManager;
import android.widget.EditText;

import com.blankj.utilcode.util.KeyboardUtils;

public class KeyboardPatch {
    private Activity activity;
    private View decorView;
    private View contentView;
    private int srcPaddingBottm;
    private boolean keyboardVisiable;
    private int screenHeight;
    /**
     * @param act         需要解決bug的activity
     * @param contentView 界面容器芹彬，最好是可滑動(dòng)的View玻熙，比如ScrollView等
     */
    public KeyboardPatch(Activity act, View contentView) {
        this.activity = act;
        this.decorView = act.getWindow().getDecorView();
        this.contentView = contentView;
        srcPaddingBottm = contentView.getPaddingBottom();
        screenHeight = decorView.getContext().getResources().getDisplayMetrics().heightPixels;
    }

    /**
     * 監(jiān)聽layout變化
     */
    public void enable() {
        //activity.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
        if (Build.VERSION.SDK_INT >= 19) {
            decorView.getViewTreeObserver().addOnGlobalLayoutListener(onGlobalLayoutListener);
            //主要為了體驗(yàn)優(yōu)化，滑動(dòng)或者觸摸非焦點(diǎn)EditTexit的時(shí)候隱藏鍵盤宏多，當(dāng)然也可以去掉該監(jiān)聽
            contentView.setOnTouchListener(new View.OnTouchListener() {
                @Override
                public boolean onTouch(View v, MotionEvent event) {
                    if (event.getAction() == MotionEvent.ACTION_DOWN || event.getAction() == MotionEvent.ACTION_MOVE) {
                        if (keyboardVisiable) {
                            KeyboardUtils.hideSoftInput(contentView);
                        }
                    }
                    return false;
                }
            });
        }
    }

    /**
     * 取消監(jiān)聽
     */
    public void disable() {
        if (Build.VERSION.SDK_INT >= 19) {
            decorView.getViewTreeObserver().removeOnGlobalLayoutListener(onGlobalLayoutListener);
        }
    }

    private ViewTreeObserver.OnGlobalLayoutListener onGlobalLayoutListener = new ViewTreeObserver.OnGlobalLayoutListener() {
        @Override
        public void onGlobalLayout() {
            Rect r = new Rect();
            //獲取可見窗口的frame儿惫，主要是獲取r.bottom
            decorView.getWindowVisibleDisplayFrame(r);
            //判斷軟鍵盤是否彈起
            keyboardVisiable = screenHeight - r.bottom >= 0;
            //尋找獲得焦點(diǎn)的view
            View focusView = decorView.findFocus();
            if (focusView != null && focusView instanceof EditText) {
                int[] location = new int[2];
                focusView.getLocationOnScreen(location);
                //如果focusView的高度很高的話，可以不必都顯示出來
                int focusBottom = location[1] + focusView.getMeasuredHeight();
                //獲取焦點(diǎn)的EditText的最底部和可見窗口的最底部的差值
                int diff = focusBottom - r.bottom;
                //如果大于0伸但，說明被遮擋了肾请，需要添加paddingBottom的值增加diff，并且需要把焦點(diǎn)view滑動(dòng)上來更胖，如果小于0铛铁，說明不存在遮擋，還原即可
                if (diff > 0) {
                    if (srcPaddingBottm != diff) {
                        contentView.setPadding(contentView.getPaddingLeft(), contentView.getPaddingTop(), contentView.getPaddingRight(), diff + srcPaddingBottm);
                        contentView.scrollBy(0, diff);
                    }
                } else {
                    if (contentView.getPaddingBottom() != 0) {
                        contentView.setPadding(contentView.getPaddingLeft(), contentView.getPaddingTop(), contentView.getPaddingRight(), srcPaddingBottm);
                    }
                }
            }

        }
    };

}