android - 在android中自动更改设置的默认字体大小？

Question

我为设置(字体大小)创建了首选项。我为手机和平板电脑(自动)类型定义了多个 array.xml 。我需要自动为我的设置(字体大小)设置默认字体大小。

someCode.....getString("lstFontSize", "10"<======);I need set font size automatic.

Answer 1

使用这个:

public static int resSize = 0;
public static int resSizeTablet = 0;
public static int size()
{
    String prf = G.preference.getString("lstFontSize", (resSize != 0) ? String.valueOf(resSize) :String.valueOf(resSizeTablet));
    size = Integer.parseInt(prf);
    return size;
}
public static int DefaultFontSize(Activity act){
    Display display = act.getWindowManager().getDefaultDisplay();
    DisplayMetrics dm=new DisplayMetrics();
    display.getMetrics(dm);
    int p=isTabletDevice();
    if (p == 0) {
        int density=dm.densityDpi;
        switch(density){
        case DisplayMetrics.DENSITY_LOW:
            return resSize = 10;
        case DisplayMetrics.DENSITY_MEDIUM:
            return resSize = 10;
        case DisplayMetrics.DENSITY_HIGH:
            return resSize = 14;
        case DisplayMetrics.DENSITY_XHIGH:
            return resSize = 18;
        case DisplayMetrics.DENSITY_XXHIGH:
            return resSize = 24;
        case DisplayMetrics.DENSITY_XXXHIGH:
            return resSize = 28;
        }
    }
    return 0;

}

public static int isTabletDevice() {

    boolean xlarge = ((G.context.getResources().getConfiguration().screenLayout & 
                        Configuration.SCREENLAYOUT_SIZE_MASK) == 
                        Configuration.SCREENLAYOUT_SIZE_XLARGE);

    if (xlarge) {
        DisplayMetrics metrics = new DisplayMetrics();
        Activity activity = (Activity) G.context;
        activity.getWindowManager().getDefaultDisplay().getMetrics(metrics);

        switch (metrics.densityDpi) {
        case DisplayMetrics.DENSITY_HIGH:
            return resSizeTablet = 24;
        case DisplayMetrics.DENSITY_MEDIUM:
            return resSizeTablet = 20;
        case DisplayMetrics.DENSITY_XHIGH:
            return resSizeTablet = 28;

        default:
            break;
        }
    }
    return 0;
}

然后你可以使用:

Conver.setTextSize(TypedValue.COMPLEX_UNIT_SP,YourClassName.size());