StateListDrawable를 이용하여 이미지 변경하기.

java소스

int stateChecked = android.R.attr.state_checked;
int stateFocused = android.R.attr.state_focused;
int statePressed = android.R.attr.state_pressed;
int stateEnabled = android.R.attr.state_enabled;
int stateWindowFocused = android.R.attr.state_window_focused;
StateListDrawable dr_open = (StateListDrawable)getResources().getDrawable(R.drawable.drawer_close);
dr_open.addState(new int[]{-stateWindowFocused, stateEnabled}, new BitmapDrawable(getResources(), filePath + "ic_tray_expand.png" ));
dr_open.addState(new int[]{statePressed}, new BitmapDrawable(getResources(), filePath + "ic_tray_expand_pressed.png" ));
dr_open.addState(new int[]{stateFocused, stateEnabled}, new BitmapDrawable(getResources(), filePath + "ic_tray_expand_selected.png" ));
dr_open.addState(new int[]{stateEnabled}, new BitmapDrawable(getResources(), filePath + "ic_tray_expand.png" ));
dr_open.addState(new int[]{stateFocused}, new BitmapDrawable(getResources(), filePath + "ic_tray_expand_selected.png" ));
StateListDrawable dr_close = (StateListDrawable)getResources().getDrawable(R.drawable.drawer_open);
dr_close.addState(new int[]{-stateWindowFocused, stateEnabled}, new BitmapDrawable(getResources(), filePath + "ic_tray_collapse.png" ));
dr_close.addState(new int[]{statePressed}, new BitmapDrawable(getResources(), filePath + "ic_tray_collapse_pressed.png" ));
dr_close.addState(new int[]{stateFocused, stateEnabled}, new BitmapDrawable(getResources(), filePath + "ic_tray_collapse_selected.png" ));
dr_close.addState(new int[]{stateEnabled}, new BitmapDrawable(getResources(), filePath + "ic_tray_collapse.png" ));
dr_close.addState(new int[]{stateFocused}, new BitmapDrawable(getResources(), filePath + "ic_tray_collapse_selected.png" ));
Drawable drawable[] = new Drawable[]{dr_open, dr_close};
TransitionDrawable tranDrawable = new TransitionDrawable(drawable);
mHandleView.setImageDrawable(tranDrawable);

drawer_open.xml

drawer_close.xml

위 소스는 ADW.Launcher를 기초로 했음. <설명>독바의 Application Drawer 버튼의 이미지를 동적으로 변경을 하기 위해 xml로 되어 있던 것을 java 소스상에서 변경을 할수 있게끔 변경했음.