Android 新版本的出現(xiàn) ，適配Android8.0未知來源應用安裝權(quán)限處理

1、在清單文件中增加請求安裝權(quán)限

<uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />

private void showChangCityDialog() {
    
    CustomDialog.Builder builder = new CustomDialog.Builder(mContext);
    builder.setTitleStr("提示");
    builder.setBodysStr("安裝應用需要打開未知來源權(quán)限，請去設置中開啟權(quán)限");
    builder.setLeftbtnStr("取消");
    builder.setRightbtnStr("設置");
    builder.setLeftBtnColor(R.color.color_333333);
    builder.setrRightBtnColor(R.color.C6);
    builder.setOnClickListener(new CustomDialog.DialogOnItemClickListener() {
        @Override
        public void leftClick() {
            finish();
        }

        @Override
        public void rightClick() {
            //兼容8.0
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                boolean hasInstallPermission = mContext.getPackageManager().canRequestPackageInstalls();
                if (!hasInstallPermission) {
                    startInstallPermissionSettingActivity();
                } else {
                    //再次執(zhí)行安裝流程，包含權(quán)限判等
                    if (!TextUtils.isEmpty(appUrl)) {
                        //再次啟動安裝流程
                        installApk(appUrl);
                    }
                }
            }
        }
    });
    builder.create().show();
}

/**
 * 跳轉(zhuǎn)到設置-允許安裝未知來源-頁面
 */
@RequiresApi(api = Build.VERSION_CODES.O)
private void startInstallPermissionSettingActivity() {

    Uri packageURI = Uri.parse("package:" + BuildConfig.APPLICATION_ID);
    //注意這個是8.0新API
    Intent intent = new Intent(Settings.ACTION_MANAGE_UNKNOWN_APP_SOURCES, packageURI);
    startActivityForResult(intent, 1);

}

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