Android调用密码锁屏校验的流程代码详解

KeyguardManager mKeyguardMgr = null;
   if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            mKeyguardMgr = getSystemService(KeyguardManager.class);
        }

/**
     * 跳转锁屏密码校验页面
     */
    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
    public void showScreenLockPwd() {
        Intent intent = mKeyguardMgr.createConfirmDeviceCredentialIntent(null, null);
        if (intent != null) {
            startActivityForResult(intent, 1101);
        } else {
            Toast.makeText(this, "intent==null", Toast.LENGTH_LONG).show();
        }
    }

/**
     * @param requestCode
     * @param resultCode
     * @param data        锁屏密码校验回调
     */
    @Override
    public void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == 1101) {
            if (resultCode == RESULT_OK) {
                Toast.makeText(this, "校验成功", Toast.LENGTH_LONG).show();
            } else {
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                    showScreenLockPwd();
                }
            }
        }
    }

 //跳转密码校验 没pin码时intent==null
        Intent intent = mKeyguardMgr.createConfirmDeviceCredentialIntent(null, null);
        if (intent != null) {
            if (ClientSdkAppEnv.isMiRom()) {
                //小米延迟一秒执行(锁屏验证页面使用android:taskAffinity)，
                // 小米11上会出现执行两次onactivityresult的情况
                Scheduler.dispatchUI(() -> startActivityForResult(intent, ACTIVITY_FOR_RESULT), Dates.MILLIS_PER_SECOND);
            } else {
                startActivityForResult(intent, ACTIVITY_FOR_RESULT);
            }
        } else {
          //跳转密码校验 没pin码时intent==null
          Toast.makeText(this, "intent==null", Toast.LENGTH_LONG).show();
        }