android 子view不一樣時候,viewpager高度自適應
阿新 • • 發佈:2018-11-09
/** * 高度自適應內容的ViewPager * Created by cheng on 2018/1/12. */ public class WrapContentHeightViewPager extends ViewPager { private int current; private int height = 0; private boolean scrollble = true; public WrapContentHeightViewPager(Context context) { super(context); } public WrapContentHeightViewPager(Context context, AttributeSet attrs) { super(context, attrs); } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { if (getChildCount() > current) { View child = getChildAt(current); child.measure(widthMeasureSpec, MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED)); int h = child.getMeasuredHeight(); height = h; } heightMeasureSpec = MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY); super.onMeasure(widthMeasureSpec, heightMeasureSpec); } //每次viewpage切換時呼叫進行高度重新適配 public void resetHeight(int current) { this.current = current; if (getChildCount() > current) { LinearLayout.LayoutParams layoutParams = (LinearLayout.LayoutParams) getLayoutParams(); if (layoutParams == null) { layoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, height); } else { layoutParams.height = height; } setLayoutParams(layoutParams); } } //不允許左右滑動 @Override public boolean onTouchEvent(MotionEvent ev) { //允許左右滑動 // if (!scrollble) { // return true; // } // return super.onTouchEvent(ev); return false; } @Override public boolean onInterceptTouchEvent(MotionEvent event) { return false; } @Override public boolean dispatchTouchEvent(MotionEvent ev) { return super.dispatchTouchEvent(ev); } public boolean isScrollble() { return scrollble; } public void setScrollble(boolean scrollble) { this.scrollble = scrollble; } }