Andriod开发中，有哪些坑需要注意？

@Override

protected void onApplyThemeResource(Resources.Theme theme, int resid,

boolean first) {

if (mParent == null) {

super.onApplyThemeResource(theme, resid, first);

} else {

try {

theme.setTo(mParent.getTheme());

} catch (Exception e) {

// Empty

}

theme.applyStyle(resid, false);

}

// Get the primary color and update the TaskDescription for this activity

if (theme != null) {

TypedArray a = theme.obtainStyledAttributes(com.android.internal.R.styleable.Theme);

int colorPrimary = a.getColor(com.android.internal.R.styleable.Theme_colorPrimary, 0);

a.recycle();

if (colorPrimary != 0) {

ActivityManager.TaskDescription v = new ActivityManager.TaskDescription(null, null,

colorPrimary);

setTaskDescription(v);

}

}

}

/**

* Creates the TaskDescription to the specified values.

*

* @param label A label and description of the current state of this task.

* @param icon An icon that represents the current state of this task.

* @param colorPrimary A color to override the theme's primary color. This color must be opaque.

*/

public TaskDescription(String label, Bitmap icon, int colorPrimary) {

if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) {

throw new RuntimeException("A TaskDescription's primary color should be opaque");

}

mLabel = label;

mIcon = icon;

mColorPrimary = colorPrimary;

}