[Android] Android 锁屏实现与总结 （二）

上接：

[Android] Android 锁屏实现与总结 （一）

系列文章链接如下：

[Android] Android 锁屏实现与总结 （一）

[Android] Android 锁屏实现与总结 （二）

[Android] Android 锁屏实现与总结 （三）

代码文件地址：

https://github.com/wukong1688/Android-BaseLockScreen

2、Activity设置

锁屏Activity

LockScreenActivity.java

package com.jack.applockscreen.activity;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.view.KeyEvent;
import android.view.Window;
import android.view.WindowManager;
import android.widget.TextView;
import android.widget.Toast;

import com.jack.applockscreen.R;
import com.jack.applockscreen.util.Parser;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

public class LockScreenActivity extends AppCompatActivity implements LockScreenView.OnTriggerListener {
    private KeyGuardReceiver mKeyGuardReceiver;
    private LockScreenView mLockScreenView;
    private TextView mTimeView;
    private TextView mDateView;
    private static final SimpleDateFormat TIME_FORMAT = new SimpleDateFormat("HH:mm");

    private static final String[] DAY_OF_WEEK = {"周日", "周一", "周二", "周三", "周四", "周五", "周六"};

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Parser.KEY_GUARD_INSTANCES.add(this);

        Window window = getWindow();
        window.setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
        window.addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD
                | WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED
                | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON |
                WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
        );

        registerKeyGuardReceiver();//屏蔽Home

        setContentView(R.layout.activity_lock_screen);

        initViews();

        Parser.killBackgroundProcess(this);
    }

    @Override
    protected void onResume() {
        super.onResume();
        // 设置该广告的左划收益和右划收益
        mLockScreenView.setTargetDrawablesAndTexts(
                R.mipmap.ic_lockscreen_trigger, R.mipmap.ic_lockscreen_unlock, "", "");

    }

    private void initViews() {
        mLockScreenView = (LockScreenView) findViewById(R.id.lock_screen_pad);
        mTimeView = (TextView) findViewById(R.id.time);
        mDateView = (TextView) findViewById(R.id.date);
        mLockScreenView.setTargetDrawablesAndTexts(, R.mipmap.ic_lockscreen_unlock, null, null);
        mLockScreenView.setOnTriggerListener(this);

        Date date = new Date();
        Calendar calendar = Calendar.getInstance();
        mTimeView.setText(TIME_FORMAT.format(date));
        String dateString = (calendar.get(Calendar.MONTH) + ) + "月"
                + calendar.get(Calendar.DAY_OF_MONTH) + "日 "
                + DAY_OF_WEEK[calendar.get(Calendar.DAY_OF_WEEK) - ];
        mDateView.setText(dateString);
    }

    @Override
    public void onBackPressed() {

    }

    public boolean onKeyDown(int keyCode, KeyEvent event) {
        int key = event.getKeyCode();
        switch (key) {
            case KeyEvent.KEYCODE_BACK: {
                return true;
            }
            case KeyEvent.KEYCODE_MENU: {
                return true;
            }
        }
        return super.onKeyDown(keyCode, event);
    }

    private void registerKeyGuardReceiver() {
        if (null == mKeyGuardReceiver) {
            mKeyGuardReceiver = new KeyGuardReceiver();
            registerReceiver(mKeyGuardReceiver, new IntentFilter());
        }
    }

    private void unregisterKeyGuardReceiver() {
        if (mKeyGuardReceiver != null) {
            unregisterReceiver(mKeyGuardReceiver);
        }
    }

    // 4.0以上无法屏蔽Home键，所以没什么作用
    class KeyGuardReceiver extends BroadcastReceiver {

        static final String SYSTEM_REASON = "reason";
        static final String SYSTEM_HOME_KEY = "homekey";// home key
        static final String SYSTEM_RECENT_APPS = "recentapps";// long home key

        @Override
        public void onReceive(Context context, Intent intent) {
            String action = intent.getAction();
            if (action.equals(Intent.ACTION_CLOSE_SYSTEM_DIALOGS)) {
                String reason = intent.getStringExtra(SYSTEM_REASON);
                if (reason != null) {
                    if (reason.equals(SYSTEM_HOME_KEY)) {
                        finish();
                    } else if (reason.equals(SYSTEM_RECENT_APPS)) {
                    }
                }
            } else if (action.equals(TelephonyManager.ACTION_PHONE_STATE_CHANGED) || action.equals(Intent.ACTION_NEW_OUTGOING_CALL)) {
                finish();
            }
        }
    }

    // 左划
    @Override
    public void onTriggerLeft() {
        showToast("解锁成功");
        finish();
    }

    // 右划
    @Override
    public void onTriggerRight() {
        showToast("解锁成功");
        finish();
    }

    private void showToast(String str) {
        Toast.makeText(getApplicationContext(), str, Toast.LENGTH_LONG).show();
    }

    /**
     * 网络中断时缓存收益信息
     */
    private void saveProfitCache(String action, String phone, float profit, String advertiseId) {

    }

    @Override
    protected void onDestroy() {
        unregisterKeyGuardReceiver();
        super.onDestroy();
    }

}

注意：

FLAG_DISMISS_KEYGUARD用于去掉系统锁屏页，FLAG_SHOW_WHEN_LOCKED使Activity在锁屏时仍然能够显示。

同时记得需要加入权限到manifest中

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

对应布局文件activity_lock_screen.xml：

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#6c6c6c">

    <com.jack.applockscreen.activity.LockScreenView
        android:id="@+id/lock_screen_pad"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom"
        android:layout_marginBottom="36dp">
    </com.jack.applockscreen.activity.LockScreenView>

    <RelativeLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:paddingLeft="32dp"
        android:paddingRight="32dp"
        android:paddingTop="50dp">

        <TextView
            android:id="@+id/time"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:textColor="@android:color/white"
            android:textSize="36dp"
            android:typeface="serif" />

        <TextView
            android:id="@+id/date"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:layout_marginTop="8dp"
            android:textColor="@android:color/white"
            android:textSize="16dp"
            android:typeface="serif" />

    </RelativeLayout>

</FrameLayout>

下接文件：

[Android] Android 锁屏实现与总结 （三）

本博客地址： wukong1688

本文原文地址：https://www.cnblogs.com/wukong1688/p/10725092.html

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