mainLayout = (LinearLayout) findViewById(R.id.linearLayout);
mChart = new HorizontalBarChart(this);
mChart.setLayoutParams(new ViewGroup.LayoutParams(
ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.WRAP_CONTENT));
mainLayout.addView(mChart);
I like to change the width and height to dp units like 100 dp or 200 dp,. the setLayoutParams doesn't take number units , the choices are only (wrap_content and match_content).. I'm new to Android so im confused how to change it.
Another ways is you add your dimension in dimens.xml.
For example, add <dimen name="chart_width">100dp</dimen>
.
Then, at your code:
float width = getResources().getDimension(R.dimen.chart_width);
mChart.setLayoutParams(new ViewGroup.LayoutParams(
width,
ViewGroup.LayoutParams.WRAP_CONTENT));
Converting dip values into pixels will let your layout build correctly, this line of code will solve it:
int width = (int) TypedValue.applyDimension(
TypedValue.COMPLEX_UNIT_DIP,
getResources().getDimension(R.dimen.desired_width),
getResources().getDisplayMetrics()
);
I think we can't set dp
directly to the view. So we've to convert the dimension from pixel
to dp
.
To get pixel
from dp
, you can use TypedValue#applyDimension()
method.
Resources r = getResources();
float px = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, {sizeInDp}, r.getDisplayMetrics());
So the final code will be
float width = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, {widthInDp}, r.getDisplayMetrics());
float height = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, {heightInDp}, r.getDisplayMetrics());
mChart.setLayoutParams(new ViewGroup.LayoutParams(
width,
height));
int dp1 = dip2pix(getContext(), 1);
FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(
dp1 * 100, ViewGroup.LayoutParams.WRAP_CONTENT);
public static int dip2pix(@NonNull Context context, int dip) {
return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dip,
context.getResources().getDisplayMetrics());
}
Give it a try it will work for sure
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
200, 200);
params.setMargins(5, 0, 5, 0);
mChart= new HorizontalBarChart(getApplicationContext());
mChart.setLayoutParams(params);
mainLayout.addView(mChart);
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.