获取屏幕属性的工具类

最新推荐文章于 2019-12-03 15:13:30 发布

原创最新推荐文章于 2019-12-03 15:13:30 发布 · 482 阅读

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本文介绍了一个用于获取Android设备屏幕信息的实用类ScreenInfo。该类能够读取并提供屏幕宽度、高度、密度及密度DPI等关键参数。

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package com.widget.time;

import android.app.Activity;
import android.util.DisplayMetrics;

/**
* 得到屏幕宽高密度等
* @author
* @chenlin
*
*/
public class ScreenInfo {
private Activity activity;
/** 屏幕宽度（像素）*/
private int width;
/**屏幕高度（像素）*/
private int height;
/**屏幕密度（0.75 / 1.0 / 1.5）*/
private float density;
/**屏幕密度DPI（120 / 160 / 240）*/
private int densityDpi;
public Activity getActivity() {
return activity;
}

public void setActivity(Activity activity) {
this.activity = activity;
}

public int getWidth() {
return width;
}

public void setWidth(int width) {
this.width = width;
}

public int getHeight() {
return height;
}

public void setHeight(int height) {
this.height = height;
}

public float getDensity() {
return density;
}

public void setDensity(float density) {
this.density = density;
}

public int getDensityDpi() {
return densityDpi;
}

public void setDensityDpi(int densityDpi) {
this.densityDpi = densityDpi;
}

public ScreenInfo(Activity activity){
this.activity = activity;
ini();
}

private void ini(){
DisplayMetrics metric = new DisplayMetrics();
activity.getWindowManager().getDefaultDisplay().getMetrics(metric);
width = metric.widthPixels;
height = metric.heightPixels;
density = metric.density;
densityDpi = metric.densityDpi;
}

}