package 哈哈哈哈哈哈哈哈哈哈;

import android.content.Context;
import android.graphics.Color;
import android.os.Build;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.TextView;
import java.lang.reflect.Method;
public class MainActivity extends 
 
AppCompatActivity {

    @Override
protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
TextView tv_pd = findViewById(R.id.tv_pd);
StringBuffer sb = new StringBuffer();
        boolean bb = hasNotchInScreen(this);
        int 
 
banben = Build.VERSION.SDK_INT;
sb.append("代號（28）" + banben);
sb.append("\n");
        if (bb) {
            sb.append("是劉海螢幕" + bb);
sb.append("\n");
            int[] iwh = getNotchSize(this);
sb.append("寬:" + iwh[0]);
sb.append("\n");
sb.append("高:" + iwh[1]);
sb.append("\n手機廠商一般情況下已經處理好劉海問題，僅在全屏下稍作考慮"
 
);
} else {
            sb.append("不是劉海螢幕" + bb);
}


        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            getWindow().setNavigationBarColor(Color.parseColor("#3F51B5"));
//getWindow().setNavigationBarColor(getResources().getColor(R.color.black));
            //getWindow().setNavigationBarColor(Color.BLUE);
sb.append("修改虛擬按鍵背景顏色修改成功，按鍵顏色不變");
}

        tv_pd.setText(sb.toString());
}

    /**
     * 華為start
     */
//判斷是否是華為劉海屏
public static boolean hasNotchInScreen(Context context) {
        boolean ret = false;
        try {
            ClassLoader cl = context.getClassLoader();
Class HwNotchSizeUtil = cl.loadClass("com.huawei.android.util.HwNotchSizeUtil");
Method get = HwNotchSizeUtil.getMethod("hasNotchInScreen");
ret = (boolean) get.invoke(HwNotchSizeUtil);
} catch (ClassNotFoundException e) {
            Log.e("test", "hasNotchInScreen ClassNotFoundException");
} catch (NoSuchMethodException e) {
            Log.e("test", "hasNotchInScreen NoSuchMethodException");
} catch (Exception e) {
            Log.e("test", "hasNotchInScreen Exception");
} finally {
            return ret;
}
    }

    //獲取華為劉海的高寬
public static int[] getNotchSize(Context context) {
        int[] ret = new int[]{0, 0};
        try {
            ClassLoader cl = context.getClassLoader();
Class HwNotchSizeUtil = cl.loadClass("com.huawei.android.util.HwNotchSizeUtil");
Method get = HwNotchSizeUtil.getMethod("getNotchSize");
ret = (int[]) get.invoke(HwNotchSizeUtil);
} catch (ClassNotFoundException e) {
            Log.e("haha", "getNotchSize ClassNotFoundException");
} catch (NoSuchMethodException e) {
            Log.e("haha", "getNotchSize NoSuchMethodException");
} catch (Exception e) {
            Log.e("haha", "getNotchSize Exception");
} finally {
            return ret;
}
    }
}