Android(安卓)禁止状态栏下拉

概述

因为需求所以贴出该代码,该源码需要系统共享,且开源板子上才能安装,其次需要将编译的apk进行platform签名,仅仅是记录一下开发过程.

public class MainActivity extends AppCompatActivity implements View.OnClickListener {    private Object statusBarManagerService;    private Method methodDisable;    private TextView tvInfo;// SCREENPINNING_MODE_FLAG = StatusBarManager.DISABLE_NONE// | StatusBarManager.DISABLE_EXPAND// | StatusBarManager.DISABLE_NOTIFICATION_ICONS// | StatusBarManager.DISABLE_NOTIFICATION_ALERTS// // | StatusBarManager.DISABLE_CLOCK// // | StatusBarManager.DISABLE_SYSTEM_INFO// | StatusBarManager.DISABLE_HOME// | StatusBarManager.DISABLE_SEARCH// | StatusBarManager.DISABLE_BACK// | StatusBarManager.DISABLE_RECENT;    private final static int SCREENPINNING_MODE_FLAG = 57081856;    private final static int NORMAL_MODE_FLAG = 0;    private final static int SCREENPINNING_MODE_WITH_BACK_FLAG = 52887552;    private final static int DATE_SETTINGS_REQUEST = 0;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);        setSupportActionBar(toolbar);        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);        fab.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)                        .setAction("Action", null).show();            }        });        tvInfo = (TextView) findViewById(R.id.tv_info);        // Get android @hide class android.app.StatusBarManager by reflection.        try        {//反射拿到状态栏管理器            Class clsStatusBarManager = Class.forName("android.app.StatusBarManager");            Context appContext = getApplicationContext();            if (appContext != null) {                statusBarManagerService = appContext.getSystemService("statusbar");                methodDisable = clsStatusBarManager.getMethod("disable", int.class);            }        } catch (ClassNotFoundException e) {            reflectionError(e);        } catch (NoSuchMethodException e) {            reflectionError(e);        }    }    private void reflectionError(Exception ex) {        tvInfo.setBackgroundColor(Color.RED);        tvInfo.setText("reflection error: " + ex.toString());    }    private void disableStatusBar(int flag) {        try {//实现的核心.            methodDisable.invoke(statusBarManagerService, flag);        } catch (IllegalAccessException e) {            reflectionError(e);        } catch (InvocationTargetException e) {            reflectionError(e);        }    }    @Override    public void onClick(View v) {        switch (v.getId()) {            case R.id.bt_pin: {                disableStatusBar(SCREENPINNING_MODE_FLAG);                break;            }            case R.id.bt_unpin: {                disableStatusBar(NORMAL_MODE_FLAG);                break;            }        }    }    @Override    public boolean onCreateOptionsMenu(Menu menu) {        // Inflate the menu; this adds items to the action bar if it is present.        getMenuInflater().inflate(R.menu.menu_main, menu);        return true;    }    @Override    public boolean onOptionsItemSelected(MenuItem item) {        // Handle action bar item clicks here. The action bar will        // automatically handle clicks on the Home/Up button, so long        // as you specify a parent activity in AndroidManifest.xml.        int id = item.getItemId();        //noinspection SimplifiableIfStatement        if (id == R.id.action_settings) {            // Enable BACK button to return from Settings            disableStatusBar(SCREENPINNING_MODE_WITH_BACK_FLAG);            startActivityForResult(new Intent(Settings.ACTION_DATE_SETTINGS), DATE_SETTINGS_REQUEST);            return true;        }        return super.onOptionsItemSelected(item);    }    protected void onActivityResult(int requestCode, int resultCode,                                    Intent data) {        if (requestCode == DATE_SETTINGS_REQUEST) {            // Disable BACK button when returning from Settings            disableStatusBar(SCREENPINNING_MODE_FLAG);        }    }}

最后需要在配置文件添加:xml android:sharedUserId="android.uid.system"

概述

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