在android中禁用特定活动的主键

时间:2018-01-26 05:18:10

标签: android

是否可以在app中禁用特定活动的主页键,因为我尝试了 <category android:name="android.intent.category.DEFAULT" />  设置为DEFAULT LAUNCHER但在此处通过所有活动将主键设置为默认启动器而不是此我需要仅为特定活动禁用主键。任何人都可以帮我这个吗?

1 个答案:

答案 0 :(得分:0)

好的,我有解决方案。 创建自定义类

private static class OverlayDialog extends AlertDialog {

    public OverlayDialog(Activity activity) {
        super(activity, R.style.OverlayDialog);
        WindowManager.LayoutParams params = getWindow().getAttributes();
        params.type = TYPE_SYSTEM_ERROR;
        params.dimAmount = 0.0F; // transparent
        params.width = 0;
        params.height = 0;
        params.gravity = Gravity.BOTTOM;
        getWindow().setAttributes(params);
        getWindow().setFlags(FLAG_SHOW_WHEN_LOCKED | FLAG_NOT_TOUCH_MODAL, 0xffffff);
        setOwnerActivity(activity);
        setCancelable(false);
    }

    public final boolean dispatchTouchEvent(MotionEvent motionevent) {
        return true;
    }

    protected final void onCreate(Bundle bundle) {
        super.onCreate(bundle);
        FrameLayout framelayout = new FrameLayout(getContext());
        framelayout.setBackgroundColor(0);
        setContentView(framelayout);
    }
}

然后两个utiles方法锁定和解锁。

private OverlayDialog mOverlayDialog;

public void lock(Activity activity) {
    if (mOverlayDialog == null) {
        mOverlayDialog = new OverlayDialog(activity);
        mOverlayDialog.show();
    }
}

public void unlock() {
    if (mOverlayDialog != null) {
        mOverlayDialog.dismiss();
        mOverlayDialog = null;
    }
}
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