我的问题是我有一个带有scrollview和Linearlayout的Linearlayout包装器..我希望每个项目都是scrollview高度的1/3,无论我放入多少项目..
当我向Linearlayout添加项目时,它是线性布局,如果我添加3个“项目”它几乎没有..但如果我添加8个项目,它们都非常小且可滚动。这就是我想要的,但我希望它们的高度为scrollview / linearlayout的1/3。
我希望它能够与我在第二个布局中的按钮一样大。
我似乎无法做到正确,希望它只是一个我拒绝看到的简单解决方案。
到目前为止我的代码:
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dip"
android:orientation="vertical"
android:layout_weight="75">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/scrollView2"
android:layout_gravity="center_horizontal"
android:fillViewport="true"
android:scrollbarSize="5dp"
android:fadeScrollbars="false"
android:layout_marginRight="5dp"
android:layout_marginLeft="5dp"
android:scrollbarThumbVertical="@drawable/custom_scroll_style">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/coats"
android:orientation="vertical"
android:weightSum="75">
</LinearLayout>
</ScrollView>
</LinearLayout>
这是我将'children'添加到scrollview包含的布局
的方法LinearLayout w0 = new LinearLayout(this);
LinearLayout w1 = new LinearLayout(this);
ImageView w2 = new ImageView(this);
TextView w3 = new TextView(this);
TextView w4 = new TextView(this);
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT, 25);
params.setMargins(pixelToDp(0),pixelToDp(5),pixelToDp(0),pixelToDp(5));
w0.setLayoutParams(params);
w0.setOrientation(LinearLayout.HORIZONTAL);
w0.setClickable(true);
w0.setBackgroundColor(Color.argb(100, 100, 100, 100));
w0.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
for (int i = 0; i < LLCoats.getChildCount(); i++) {
View vv = LLCoats.getChildAt(i);
vv.setSelected(false);
vv.setBackgroundColor(Color.argb(100, 100, 100, 100));
}
LinearLayout LL = (LinearLayout)LLCoats.getChildAt(i);
TextView TV = (TextView)LL.getChildAt(1);
TV.requestFocus();
if(TV.getError() != null)
{
Snackbar snackbar = Snackbar
.make(findViewById(android.R.id.content), ""+TV.getError(), Snackbar.LENGTH_LONG);
snackbar.show();
}
v.setSelected(true);
v.setBackgroundColor(Color.argb(255,255,255,255));
}
});
LinearLayout.LayoutParams params2 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT, 2);
w1.setLayoutParams(params2);
w1.setOrientation(LinearLayout.VERTICAL);
w1.setClickable(false);
LinearLayout.LayoutParams params3 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT,1);
w2.setLayoutParams(params3);
w2.setScaleType(ImageView.ScaleType.FIT_CENTER);
LinearLayout.LayoutParams params4 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT,1);
w3.setLayoutParams(params4);
w3.setTextSize(25f);
w3.setGravity(Gravity.CENTER);
w3.setClickable(false);
LinearLayout.LayoutParams params5 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT,1);
w4.setLayoutParams(params5);
w4.setTextSize(45f);
w4.setGravity(Gravity.CENTER);
w4.setClickable(false);
w1.addView(w2);
w1.addView(w3);
w0.addView(w1);
w0.addView(w4);
LLCoats.addView(w0);
UPDATE:
现在变得非常奇怪,因为我找到了一种计算高度的方法并将其添加:
DisplayMetrics display = this.getResources().getDisplayMetrics();
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, pixelToDp((int)(display.heightPixels* .8 * 0.25)));
这在我的PI64和华硕平板电脑上运行得非常好,但是我的手机让高度100%与滚动视图一样,怎么回事?
答案 0 :(得分:0)
我的设计是这样的,获得屏幕尺寸* .8,因为屏幕用作弹出窗口,然后是0.25,因为项目是屏幕的1/4,最后是-10,用于我的边距
DisplayMetrics display = this.getResources().getDisplayMetrics();
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, (int)(display.heightPixels* .8 * 0.25 - pixelToDp(10)));
params.setMargins(pixelToDp(0),pixelToDp(5),pixelToDp(0),pixelToDp(5));