2020.09.23

app/src/main/java/com/tt/activity/JMainActivity.java

@@ -1,7 +1,11 @@
 package com.tt.activity;
 
+import android.view.KeyEvent;
+import android.widget.Toast;
+
 import com.tt.base.BaseActivity;
 import com.tt.ttutils.R;
+import com.tt.ttutils.java.ToastUtil;
 
 public class JMainActivity extends BaseActivity {
 
@@ -19,4 +23,33 @@ public class JMainActivity extends BaseActivity {
     protected void initData() {
 
     }
+
+    // 用来计算返回键的点击间隔时间
+    private long exitTime = 0;
+    @Override
+    public boolean onKeyDown(int keyCode, KeyEvent event) {
+        if (keyCode == KeyEvent.KEYCODE_BACK
+                && event.getAction() == KeyEvent.ACTION_DOWN) {
+            if ((System.currentTimeMillis() - exitTime) > 1000) {
+                //弹出提示，可以有多种方式
+                Toast.makeText(getApplicationContext(), "再按一次退出程序", Toast.LENGTH_SHORT).show();
+                exitTime = System.currentTimeMillis();
+            } else {
+                finish();
+            }
+            return true;
+        }
+
+        return super.onKeyDown(keyCode, event);
+    }
+    private long mPreClickTime=0;
+
+    private void lazyExit() {
+        if (System.currentTimeMillis() - mPreClickTime > 1000) {
+            ToastUtil.show("再按一次，退出");
+            mPreClickTime = System.currentTimeMillis();
+        } else {
+            finish();
+        }
+    }
 }

app/src/main/java/com/tt/ttutils/java/DevicesUtils.java

@@ -1,8 +1,18 @@
 package com.tt.ttutils.java;
 
 import android.annotation.SuppressLint;
+import android.content.Context;
 import android.os.Build;
+import android.provider.Settings;
+import android.telephony.TelephonyManager;
+import android.util.DisplayMetrics;
 import android.util.Log;
+import android.view.WindowManager;
+
+import androidx.annotation.RequiresApi;
+
+import org.json.JSONException;
+import org.json.JSONObject;
 
 import java.lang.reflect.Method;
 
@@ -40,6 +50,85 @@ public class DevicesUtils {
         }
         return serial;
     }
+    @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN_MR1)
+    public static String getAndroiodScreenProperty(Context context) {
+        WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
+        DisplayMetrics dm = new DisplayMetrics();
+        wm.getDefaultDisplay().getRealMetrics(dm);
+        int width = dm.widthPixels;         // 屏幕宽度（像素）
+        int height = dm.heightPixels;       // 屏幕高度（像素）
+        float density = dm.density;         // 屏幕密度（0.75 / 1.0 / 1.5）
+        int densityDpi = dm.densityDpi;     // 屏幕密度dpi（120 / 160 / 240）
+        // 屏幕宽度算法:屏幕宽度（像素）/屏幕密度
+        int screenWidth = (int) (width / density);  // 屏幕宽度(dp)
+        int screenHeight = (int) (height / density);// 屏幕高度(dp)
 
 
+        Log.e("h_bl", "屏幕宽度（像素）：" + width);
+        Log.e("h_bl", "屏幕高度（像素）：" + height);
+        Log.e("h_bl", "屏幕密度（0.75 / 1.0 / 1.5）：" + density);
+        Log.e("h_bl", "屏幕密度dpi（120 / 160 / 240）：" + densityDpi);
+        Log.e("h_bl", "屏幕宽度（dp）：" + screenWidth);
+        Log.e("h_bl", "屏幕高度（dp）：" + screenHeight);
+        return screenWidth+"×"+screenHeight;
+    }
+
+    public static String getIMEI(Context context) {
+        String IMEI = "unknow";
+        String IMEI1, IMEI2, IMEI3;
+        //获取手机设备号
+        TelephonyManager TelephonyMgr = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
+        //8.0及以后版本获取
+//        if (android.os.Build.VERSION.SDK_INT <= Build.VERSION_CODES.LOLLIPOP) {
+//        IMEI1 = TelephonyMgr.getDeviceId();
+//        } else
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+//        try {
+//            Method method = TelephonyMgr.getClass().getMethod("getImei");
+//            IMEI2 = (String) method.invoke(TelephonyMgr);
+//        } catch (Exception e) {
+//            e.printStackTrace();
+//            Log.e("getIMEI", e.getMessage());
+//        }
+//        } else {//9.0到10.0获取
+            IMEI = Settings.System.getString(context.getContentResolver(), Settings.Secure.ANDROID_ID);
+        }
+        Log.e("IMEI:", "IMEI: " + IMEI);
+        return IMEI.toUpperCase();
+    }
+    public static String getProperty(String key, String defaultValue) {
+        String value = defaultValue;
+        try {
+            Class<?> c = Class.forName("android.os.SystemProperties");
+            Method get = c.getMethod("get", String.class, String.class);
+            value = (String) (get.invoke(c, key, "unknown"));
+        } catch (Exception e) {
+            e.printStackTrace();
+        } finally {
+            return value;
+        }
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN_MR1)
+    public static String getMachine(Context context) {
+        String device = Build.MODEL;//机型
+        String imei = getIMEI(context);
+        String system_version = Build.VERSION.RELEASE;
+        String firmware_version =getProperty("ro.build.display.id", "获取失败") ;
+        String rom = getProperty("ro.custom.build.version", "获取失败");
+        String screen_rate=getAndroiodScreenProperty(context);
+        JSONObject jsonObject = new JSONObject();
+        try {
+            jsonObject.put("device",device);
+            jsonObject.put("imei",imei);
+            jsonObject.put("system_version",system_version);
+            jsonObject.put("firmware_version",firmware_version);
+            jsonObject.put("rom",rom);
+            jsonObject.put("screen_rate",screen_rate);
+        } catch (JSONException e) {
+            e.printStackTrace();
+        }
+        return jsonObject.toString();
+    }
+
 }

app/src/main/java/com/tt/ttutils/kt/ToastUtil.kt

@@ -1,7 +1,17 @@
 package com.tt.ttutils.kt
 
-import java.util.logging.Handler
+import android.content.Context
+import android.os.Handler
+import android.os.Looper
+import android.os.Message
+import android.widget.Toast
+
 
 class ToastUtil {
+    private val mhandler: Handler = object : Handler(Looper.getMainLooper()) {}
+
+    fun init(context: Context) {
+
+    }
 
 }