在使用的RelativeLayout用的LayoutParams DP [英] Using layoutparams in relativeLayout with dp
本文介绍了在使用的RelativeLayout用的LayoutParams DP的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我米做一个应用程序,我想能够移动使用它的利润率动态视图。
我尝试使用这样的:
I m making an app and i want to be able to move a view using its margins dynamically. I tried using this :
RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams)cover.getLayoutParams();
params.leftMargin= 470;
params.topMargin= 20;
cover.setLayoutParams(params); (cover is an ImageView)
本code公司,它使用像素而不是DP的问题。我用DisplayMetrics转换我的像素值DP还尝试过但失败了。你能帮助我吗?
The problem with this code its that it uses px instead of dp. I also tried using DisplayMetrics to convert my px values to dp but failed . Can you help me ?
推荐答案
您需要根据DPI设定保证金 -
You need to set margin according to dpi -
DisplayMetrics displayMetrics = new DisplayMetrics();
WindowManager windowManager = (WindowManager) MyActivity.this.getSystemService(Context.WINDOW_SERVICE);
windowManager.getDefaultDisplay().getMetrics(displayMetrics);
现在你可以设置保证金为 -
Now you can set margin as -
params.leftMargin = Math.round(470 * displayMetrics.density);
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