Android输入法弹出时覆盖输入框问题的解决方法

 
 public final class InsetFrameLayout extends FrameLayout { private int[] mInsets = new int[4]; public InsetFrameLayout(Context context) { super(context); } public InsetFrameLayout(Context context, AttributeSet attrs) { super(context, attrs); } public InsetFrameLayout(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); } public final int[] getInsets() { return mInsets; } @Override protected final boolean fitSystemWindows(Rect insets) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) { // Intentionally do not modify the bottom inset. For some reason, // if the bottom inset is modified, window resizing stops working. mInsets[0] = insets.left; mInsets[1] = insets.top; mInsets[2] = insets.right; insets.left = 0; insets.top = 0; insets.right = 0; } return super.fitSystemWindows(insets); } @Override public final WindowInsets onApplyWindowInsets(WindowInsets insets) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT_WATCH) { mInsets[0] = insets.getSystemWindowInsetLeft(); mInsets[1] = insets.getSystemWindowInsetTop(); mInsets[2] = insets.getSystemWindowInsetRight(); return super.onApplyWindowInsets(insets.replaceSystemWindowInsets(0, 0, 0, insets.getSystemWindowInsetBottom())); } else { return insets; } } } 

 /* * Copyright (C) 2015 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * *   http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package android.support.design.internal; import android.content.Context; import android.content.res.TypedArray; import android.graphics.Canvas; import android.graphics.Rect; import android.graphics.drawable.Drawable; import android.support.annotation.NonNull; import android.support.design.R; import android.support.v4.view.ViewCompat; import android.support.v4.view.WindowInsetsCompat; import android.util.AttributeSet; import android.view.View; import android.widget.FrameLayout; /** * @hide */ public class ScrimInsetsFrameLayout extends FrameLayout { private Drawable mInsetForeground; private Rect mInsets; private Rect mTempRect = new Rect(); public ScrimInsetsFrameLayout(Context context) { this(context, null); } public ScrimInsetsFrameLayout(Context context, AttributeSet attrs) { this(context, attrs, 0); } public ScrimInsetsFrameLayout(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); final TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.ScrimInsetsFrameLayout, defStyleAttr, R.style.Widget_Design_ScrimInsetsFrameLayout); mInsetForeground = a.getDrawable(R.styleable.ScrimInsetsFrameLayout_insetForeground); a.recycle(); setWillNotDraw(true); // No need to draw until the insets are adjusted ViewCompat.setOnApplyWindowInsetsListener(this, new android.support.v4.view.OnApplyWindowInsetsListener() { @Override public WindowInsetsCompat onApplyWindowInsets(View v, WindowInsetsCompat insets) { if (null == mInsets) { mInsets = new Rect(); } mInsets.set(insets.getSystemWindowInsetLeft(), insets.getSystemWindowInsetTop(), insets.getSystemWindowInsetRight(), insets.getSystemWindowInsetBottom()); setWillNotDraw(mInsets.isEmpty() || mInsetForeground == null); ViewCompat.postInvalidateOnAnimation(ScrimInsetsFrameLayout.this); return insets.consumeSystemWindowInsets(); } }); } @Override public void draw(@NonNull Canvas canvas) { super.draw(canvas); int width = getWidth(); int height = getHeight(); if (mInsets != null && mInsetForeground != null) { int sc = canvas.save(); canvas.translate(getScrollX(), getScrollY()); // Top mTempRect.set(0, 0, width, mInsets.top); mInsetForeground.setBounds(mTempRect); mInsetForeground.draw(canvas); // Bottom mTempRect.set(0, height - mInsets.bottom, width, height); mInsetForeground.setBounds(mTempRect); mInsetForeground.draw(canvas); // Left mTempRect.set(0, mInsets.top, mInsets.left, height - mInsets.bottom); mInsetForeground.setBounds(mTempRect); mInsetForeground.draw(canvas); // Right mTempRect.set(width - mInsets.right, mInsets.top, width, height - mInsets.bottom); mInsetForeground.setBounds(mTempRect); mInsetForeground.draw(canvas); canvas.restoreToCount(sc); } } @Override protected void onAttachedToWindow() { super.onAttachedToWindow(); if (mInsetForeground != null) { mInsetForeground.setCallback(this); } } @Override protected void onDetachedFromWindow() { super.onDetachedFromWindow(); if (mInsetForeground != null) { mInsetForeground.setCallback(null); } } } 

 @Override public final WindowInsets onApplyWindowInsets(WindowInsets insets) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT_WATCH) { mInsets[0] = insets.getSystemWindowInsetLeft(); mInsets[1] = insets.getSystemWindowInsetTop(); mInsets[2] = insets.getSystemWindowInsetRight(); return super.onApplyWindowInsets(insets.replaceSystemWindowInsets(0, 0, 0, insets.getSystemWindowInsetBottom())); } else { return insets; } }