Android 7.1 导航栏增加按键
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2022-04-10 15:19:53
需求说明导航栏增加按键平台:rk3399+ Android 7.1实现导航栏增加按键frameworks/base/packages/SystemUI/res/drawable-nodpi/ic_sysbar_back.pngframeworks/base/packages/SystemUI/res/values/strings.xml添加strings,xml字符串
需求说明
导航栏增加按键
平台:
rk3399 + Android 7.1
实现
1.导航栏增加按键
frameworks/base/packages/SystemUI/res/drawable-nodpi/ic_sysbar_back.png
frameworks/base/packages/SystemUI/res/values/strings.xml
添加strings,xml字符串
<string name="accessibility_power" translatable="false">Power</string>
2.增加按键layout.
|-- frameworks/base/packages/SystemUI/res/layout/power.xml
<com.android.systemui.statusbar.policy.KeyButtonView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:systemui="http://schemas.android.com/apk/res-auto"
android:id="@+id/power"
android:layout_width="@dimen/navigation_key_width"
android:layout_height="match_parent"
android:layout_weight="0"
android:src="@drawable/ic_sysbar_back"
systemui:keyCode="0"
android:scaleType="center"
android:contentDescription="@string/accessibility_power"
android:paddingStart="@dimen/navigation_key_padding"
android:paddingEnd="@dimen/navigation_key_padding"
/>
其中, keyCode是按键值, 若不想处理为按键, 则置为0
3.在NavigationBarView中添加Layout
（1）添加导航栏按键集合
|-- frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarView.java
public NavigationBarView(Context context, AttributeSet attrs) {
super(context, attrs);
mDisplay = ((WindowManager) context.getSystemService(
Context.WINDOW_SERVICE)).getDefaultDisplay();
mVertical = false;
mShowMenu = false;
mGestureHelper = new NavigationBarGestureHelper(context);
mConfiguration = new Configuration();
mConfiguration.updateFrom(context.getResources().getConfiguration());
updateIcons(context, Configuration.EMPTY, mConfiguration);
mBarTransitions = new NavigationBarTransitions(this);
mButtonDisatchers.put(R.id.back, new ButtonDispatcher(R.id.back));
mButtonDisatchers.put(R.id.home, new ButtonDispatcher(R.id.home));
mButtonDisatchers.put(R.id.recent_apps, new ButtonDispatcher(R.id.recent_apps));
mButtonDisatchers.put(R.id.menu, new ButtonDispatcher(R.id.menu));
mButtonDisatchers.put(R.id.ime_switcher, new ButtonDispatcher(R.id.ime_switcher));
mButtonDisatchers.put(R.id.screenshot, new ButtonDispatcher(R.id.screenshot));
mButtonDisatchers.put(R.id.volume_add, new ButtonDispatcher(R.id.volume_add));
mButtonDisatchers.put(R.id.volume_sub, new ButtonDispatcher(R.id.volume_sub));
//添加到集合.
mButtonDisatchers.put(R.id.power, new ButtonDispatcher(R.id.power));
}
//供外部调用
public ButtonDispatcher getPowerButton() {
return mButtonDisatchers.get(R.id.power);
}
（2）默认按键布局config_navBarLayout定义:
frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarInflaterView.java: return mContext.getString(R.string.config_navBarLayout);
frameworks/base/packages/SystemUI/src/com/android/systemui/tuner/NavBarTuner.java: navLayout = context.getString(R.string.config_navBarLayout);
frameworks/base/packages/SystemUI/res/values/config.xml: <string name="config_navBarLayout" translatable="false">space;volume_sub,back,home,recent,volume_add,screenshot;menu_ime</string>
frameworks/base/packages/SystemUI/res/values-sw600dp/config.xml: <string name="config_navBarLayout" translatable="false">space;volume_sub,back,home,recent,volume_add,screenshot;menu_ime</string>
frameworks/base/packages/SystemUI/res/values-sw900dp/config.xml: <string name="config_navBarLayout" translatable="false">space;volume_sub,back,home,recent,volume_add,screenshot;menu_ime</string>
增加导航栏个数:
diff --git a/frameworks/base/packages/SystemUI/res/values-sw600dp/config.xml b/frameworks/base/packages/SystemUI/res/values-sw600dp/config.xml
old mode 100644
new mode 100755
index aa03ab2..ef41fee
--- a/frameworks/base/packages/SystemUI/res/values-sw600dp/config.xml
+++ b/frameworks/base/packages/SystemUI/res/values-sw600dp/config.xml
@@ -34,7 +34,7 @@
<bool name="config_keyguardUserSwitcher">true</bool>
<!-- Nav bar button default ordering/layout -->
- <string name="config_navBarLayout" translatable="false">space;volume_sub,back,home,recent,volume_add,screenshot;menu_ime</string>
+ <string name="config_navBarLayout" translatable="false">space;volume_sub,back,home,recent,volume_add,screenshot,power;menu_ime</string>
<!-- Animation duration when using long press on recents to dock -->
<integer name="long_press_dock_anim_duration">290</integer>
diff --git a/frameworks/base/packages/SystemUI/res/values-sw900dp/config.xml b/frameworks/base/packages/SystemUI/res/values-sw900dp/config.xml
old mode 100644
new mode 100755
index 016f7e5..c992349
--- a/frameworks/base/packages/SystemUI/res/values-sw900dp/config.xml
+++ b/frameworks/base/packages/SystemUI/res/values-sw900dp/config.xml
@@ -19,6 +19,6 @@
<resources>
<!-- Nav bar button default ordering/layout -->
- <string name="config_navBarLayout" translatable="false">space;volume_sub,back,home,recent,volume_add,screenshot;menu_ime</string>
+ <string name="config_navBarLayout" translatable="false">space;volume_sub,back,home,recent,volume_add,screenshot,power;menu_ime</string>
</resources>
diff --git a/frameworks/base/packages/SystemUI/res/values/config.xml b/frameworks/base/packages/SystemUI/res/values/config.xml
old mode 100644
new mode 100755
index da5f4bf..59e7161
--- a/frameworks/base/packages/SystemUI/res/values/config.xml
+++ b/frameworks/base/packages/SystemUI/res/values/config.xml
@@ -280,7 +280,7 @@
<string name="config_systemUIFactoryComponent" translatable="false">com.android.systemui.SystemUIFactory</string>
<!-- Nav bar button default ordering/layout -->
- <string name="config_navBarLayout" translatable="false">space;volume_sub,back,home,recent,volume_add,screenshot;menu_ime</string>
+ <string name="config_navBarLayout" translatable="false">space;volume_sub,back,home,recent,volume_add,screenshot,power;menu_ime</string>
<bool name="quick_settings_show_full_alarm">false</bool>
（3）加载Layout:
|-- frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarInflaterView.java
public static final String POWER = "power";
//加载按键
@Override
protected void onFinishInflate() {
super.onFinishInflate();
inflateChildren();
clearViews();
inflateLayout(getDefaultLayout());
}
//默认按键
protected String getDefaultLayout() {
return mContext.getString(R.string.config_navBarLayout);
}
protected void inflateLayout(String newLayout) {
mCurrentLayout = newLayout;
if (newLayout == null) {
newLayout = getDefaultLayout();
}
String[] sets = newLayout.split(GRAVITY_SEPARATOR, 3);
String[] start = sets[0].split(BUTTON_SEPARATOR);
String[] center = sets[1].split(BUTTON_SEPARATOR);
String[] end = sets[2].split(BUTTON_SEPARATOR);
// Inflate these in start to end order or accessibility traversal will be messed up.
inflateButtons(start, (ViewGroup) mRot0.findViewById(R.id.ends_group), isRot0Landscape);
inflateButtons(start, (ViewGroup) mRot90.findViewById(R.id.ends_group), !isRot0Landscape);
LinearLayout centerLayout = (LinearLayout)mRot0.findViewById(R.id.center_group);
mIsReverseInflateRot0 = !isRot0Landscape && !isSw600Dp() && mCurrentOrientation == Configuration.ORIENTATION_LANDSCAPE;
if(mIsReverseInflateRot0)
centerLayout.setOrientation(LinearLayout.VERTICAL);
inflateButtons(center, centerLayout, isRot0Landscape);
mIsReverseInflateRot0 = false;
centerLayout = (LinearLayout)mRot90.findViewById(R.id.center_group);
mIsReverseInflateRot90 = !isRot0Landscape && !isSw600Dp() && mCurrentOrientation == Configuration.ORIENTATION_PORTRAIT;
if(mIsReverseInflateRot90)
centerLayout.setOrientation(LinearLayout.HORIZONTAL);
inflateButtons(center, centerLayout, !isRot0Landscape);
mIsReverseInflateRot90 = false;
addGravitySpacer((LinearLayout) mRot0.findViewById(R.id.ends_group));
addGravitySpacer((LinearLayout) mRot90.findViewById(R.id.ends_group));
inflateButtons(end, (ViewGroup) mRot0.findViewById(R.id.ends_group), isRot0Landscape);
inflateButtons(end, (ViewGroup) mRot90.findViewById(R.id.ends_group), !isRot0Landscape);
}
//加入导航栏
@Nullable
protected View inflateButton(String buttonSpec, ViewGroup parent, boolean landscape) {
LayoutInflater inflater = landscape ? mLandscapeInflater : mLayoutInflater;
float size = extractSize(buttonSpec);
String button = extractButton(buttonSpec);
View v = null;
if (HOME.equals(button)) {
v = inflater.inflate(R.layout.home, parent, false);
if (landscape && isSw600Dp()) {
setupLandButton(v);
}
} else if (BACK.equals(button)) {
v = inflater.inflate(R.layout.back, parent, false);
if (landscape && isSw600Dp()) {
setupLandButton(v);
}
} else if (RECENT.equals(button)) {
v = inflater.inflate(R.layout.recent_apps, parent, false);
if (landscape && isSw600Dp()) {
setupLandButton(v);
}
} else if (SCREENSHOT.equals(button)) {
v = inflater.inflate(R.layout.screenshot, parent, false);
if (landscape && isSw600Dp()) {
setupLandButton(v);
}
//下面增加POWER按键, layout.power.xml也是在这里使用
}else if (POWER.equals(button)) {
v = inflater.inflate(R.layout.power, parent, false);
if (landscape && isSw600Dp()) {
setupLandButton(v);
}
} else if (VOLUME_ADD.equals(button)) {
v = inflater.inflate(R.layout.volume_add, parent, false);
if (landscape && isSw600Dp()) {
setupLandButton(v);
}
} else if (VOLUME_SUB.equals(button)) {
v = inflater.inflate(R.layout.volume_sub, parent, false);
if (landscape && isSw600Dp()) {
setupLandButton(v);
}
} else if (MENU_IME.equals(button)) {
v = inflater.inflate(R.layout.menu_ime, parent, false);
} else if (NAVSPACE.equals(button)) {
v = inflater.inflate(R.layout.nav_key_space, parent, false);
} else if (CLIPBOARD.equals(button)) {
v = inflater.inflate(R.layout.clipboard, parent, false);
} else if (button.startsWith(KEY)) {
String uri = extractImage(button);
int code = extractKeycode(button);
v = inflater.inflate(R.layout.custom_key, parent, false);
((KeyButtonView) v).setCode(code);
if (uri != null) {
((KeyButtonView) v).loadAsync(uri);
}
} else {
return null;
}
if (size != 0) {
ViewGroup.LayoutParams params = v.getLayoutParams();
params.width = (int) (params.width * size);
}
if(mIsReverseInflateRot0 || mIsReverseInflateRot90){
setupVerticalButton(v);
}
parent.addView(v);
addToDispatchers(v);
View lastView = landscape ? mLastLandscape : mLastPortrait;
if (lastView != null) {
v.setAccessibilityTraversalAfter(lastView.getId());
}
if (landscape) {
mLastLandscape = v;
} else {
mLastPortrait = v;
}
return v;
}
4.添加设置按键事件可见:
|-- frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
//导入接口
import android.widget.Toast;
//点击处理:
private View.OnClickListener mPowerClickListener = new View.OnClickListener(){
public void onClick(View v){
Toast.makeText(mContext,"power power ",Toast.LENGTH_LONG).show();
}
};
private void prepareNavigationBarView() {
mNavigationBarView.reorient();
ButtonDispatcher recentsButton = mNavigationBarView.getRecentsButton();
recentsButton.setOnClickListener(mRecentsClickListener);
recentsButton.setOnTouchListener(mRecentsPreloadOnTouchListener);
recentsButton.setLongClickable(true);
recentsButton.setOnLongClickListener(this::handleLongPressBackRecents);
ButtonDispatcher backButton = mNavigationBarView.getBackButton();
backButton.setLongClickable(true);
backButton.setOnLongClickListener(this::handleLongPressBackRecents);
ButtonDispatcher homeButton = mNavigationBarView.getHomeButton();
homeButton.setOnTouchListener(mHomeActionListener);
homeButton.setOnLongClickListener(mLongPressHomeListener);
ButtonDispatcher screenshotButton=mNavigationBarView.getScreenshotButton();
screenshotButton.setOnClickListener(mScreenshotClickListener);
screenshotButton.setOnTouchListener(mScreenshotTouchListener);
screenshotButton.setVisibility(View.VISIBLE);
boolean isShow=Settings.System.getInt(mContext.getContentResolver(), Settings.System.SCREENSHOT_BUTTON_SHOW, 1)==1;
if(isShow){
screenshotButton.setVisibility(View.VISIBLE);
}else{
screenshotButton.setVisibility(View.GONE);
}
//添加监听并使用按键可见.
ButtonDispatcher powerButton=mNavigationBarView.getPowerButton();
powerButton.setOnClickListener(mPowerClickListener);
powerButton.setVisibility(View.VISIBLE);
}
本文地址：https://blog.csdn.net/qq_32014215/article/details/107557201
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