Android 6.0动态权限概述

最新推荐文章于 2023-08-01 16:09:50 发布

原创最新推荐文章于 2023-08-01 16:09:50 发布 · 197 阅读

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博客介绍了 Android 6.0 以后的权限分类，包括危险权限、普通权限和特殊权限，还列举了特殊权限中的 SYSTEM_ALERT_WINDOW（允许在所有 app 之上弹出对话框，即设置悬浮窗）和 WRITE_SETTINGS（修改系统设置）。

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Android6.0以后权限分为：危险权限，普通权限，特殊权限

危险权限列表

普通权限列表

特殊权限

SYSTEM_ALERT_WINDOW: 允许在所有的app之上弹出对话框(设置悬浮窗)

  //判断系统是否拥有SYSTEM_ALERT_WINDOW权限
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            if (!Settings.canDrawOverlays(this)) {
                //没有权限跳转到授权页面
                Toast.makeText(this, "can not DrawOverlays", Toast.LENGTH_SHORT).show();
                Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION, Uri.parse("package:" + getPackageName()));
                startActivityForResult(intent, 1234);
            } else {
                //拥有权限 调用dialog,dialog中加入下面这句话
                // alertDialog.getWindow().setType(WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY);
                AlertDialog dialog = new AlertDialog.Builder(this).setMessage("hello world").create();
                dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY);
                dialog.show();
            }
        } else {
        //manifest中加入<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
            AlertDialog dialog = new AlertDialog.Builder(this).setMessage("hello world").create();
            dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
            dialog.show();
        }

WRITE_SETTINGS(修改系统设置)

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            if (!Settings.System.canWrite(this)) {
                Toast.makeText(this, "cannot write system settings", Toast.LENGTH_SHORT).show();
                Intent intent = new Intent(Settings.ACTION_MANAGE_WRITE_SETTINGS, Uri.parse("package:" + getPackageName()));
                startActivityForResult(intent, 1234);
            } else {
                Context cont = this.getApplicationContext();
                Settings.System.putString(cont.getContentResolver(), "name", "Jack");
                String msg = Settings.System.getString(cont.getContentResolver(), "name");
                Settings.System.putInt(cont.getContentResolver(), "age", 18);
                int age = Settings.System.getInt(cont.getContentResolver(), "age", 0);
                String text = String.valueOf(age);
                Log.d("Settings_System_String=", msg);
                Log.d("Settings_System_int", text);
            }
        } else {
            Context cont = this.getApplicationContext();
            Settings.System.putString(cont.getContentResolver(), "name", "Jack");
            String msg = Settings.System.getString(cont.getContentResolver(), "name");
            Settings.System.putInt(cont.getContentResolver(), "age", 18);
            int age = Settings.System.getInt(cont.getContentResolver(), "age", 0);
            String text = String.valueOf(age);
            Log.d("Settings_System_String=", msg);
            Log.d("Settings_System_int", text);
        }