Android Launcher 部分修改（6.0）

Android Launcher 部分修改（6.0）

这些天小小地修改了下6.0的Launcher，零零散散找了很多资料，现将有用到的部分在此汇个总，做个笔记

有些修改后需格式化刷机

Hotset横屏展示

config.xml中false

hotseat.java 中onFinishInflate()方法
    // 屏蔽其它方向设置
    //if (grid.isLandscape && !grid.isLargeTablet) {
    //    mContent.setGridSize(1, (int) grid.inv.numHotseatIcons);
    //} else {
    // 固定横屏底部展示
        mContent.setGridSize((int) grid.inv.numHotseatIcons, 1);
    //}

隐藏桌面上的图标

Y:\mggd\android\device\softwinner\astar-d7\overlay\packages\apps\Launcher3\res\xml\default_workspace_5x6.xml
在default_workspace.xml中注释掉要隐藏的内容

示例：

    <favorites xmlns:launcher="http://schemas.android.com/apk/res-auto/com.android.launcher3">
        
        

        <folder
            launcher:title="@string/naming_is_Google"
            launcher:screen="1"
            launcher:x="5"
            launcher:y="4" >
            <favorite
                launcher:className="com.google.android.apps.chrome.Main"
                launcher:packageName="com.android.chrome" />

        ......

            <favorite
                launcher:className="com.google.android.talk.SigningInActivity"
                launcher:packageName="com.google.android.talk" />
        folder>

        
        
        

        
        

        
        

        
        
        
        <resolve
                launcher:screen="3"
        launcher:x="2"
        launcher:y="3" >
        <favorite
            launcher:uri="#Intent;action=android.settings.SETTINGS;end" />
        resolve> 

        <favorite
            launcher:packageName="com.google.android.music"
            launcher:className="com.android.music.activitymanagement.TopLevelActivity"
            launcher:container="-101"
            launcher:screen="5"
            launcher:x="5"
            launcher:y="0" />

        <favorite
            launcher:packageName="com.google.android.apps.photos"
            launcher:className="com.google.android.apps.photos.home.HomeActivity"
            launcher:container="-101"
            launcher:screen="6"
            launcher:x="6"
            launcher:y="0" />
    favorites>

去掉Google原生系统里面的搜索条。

* Android 6.0 *

在Launcher3里面src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java

--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -3465,6 +3465,10 @@ public class Launcher extends Activity
     }

     public View getOrCreateQsbBar() {
+
+       if(true){
+        return null;
+       }
         if (mLauncherCallbacks != null && mLauncherCallbacks.providesSearch()) {
             return mLauncherCallbacks.getQsbBar();
         }

直接返回null，就OK；

* Android 7.1 系统 *

diff --git a/res/layout-land/launcher.xml b/res/layout-land/launcher.xml
index 3a25d68..1247875 100644
--- a/res/layout-land/launcher.xml
+++ b/res/layout-land/launcher.xml
@@ -65,11 +65,11 @@
android:layout_marginBottom="30dp"/>


- "0dp"
android:layout_height="10dp"
android:id="@+id/workspace_blocked_row" />
-
+-->
"@layout/widgets_view"
android:id="@+id/widgets_view"
android:layout_width="match_parent"
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 2c9dc3e..cd922b8 100755
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -1324,7 +1324,9 @@ public class Launcher extends Activity
mLauncherView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
-
+ //add by neil
+ mDragLayer.removeView(mQsbContainer);
+ //end
// Setup the drag layer
mDragLayer.setup(this, mDragController, mAllAppsController);

diff --git a/src/com/android/launcher3/LauncherModel.java b/src/com/android/launcher3/LauncherModel.java
index 3ac9773..d3b6224 100644
--- a/src/com/android/launcher3/LauncherModel.java
+++ b/src/com/android/launcher3/LauncherModel.java
@@ -1620,11 +1620,11 @@ public class LauncherModel extends BroadcastReceiver

if (!occupied.containsKey(item.screenId)) {
GridOccupancy screen = new GridOccupancy(countX + 1, countY + 1);
- if (item.screenId == Workspace.FIRST_SCREEN_ID) {
+ // if (item.screenId == Workspace.FIRST_SCREEN_ID) {
// Mark the first row as occupied (if the feature is enabled)
// in order to account for the QSB.
- screen.markCells(0, 0, countX + 1, 1, FeatureFlags.QSB_ON_FIRST_SCREEN);
- }
+ // screen.markCells(0, 0, countX + 1, 1, FeatureFlags.QSB_ON_FIRST_SCREEN);
+ // }
occupied.put(item.screenId, screen);
}
final GridOccupancy occupancy = occupied.get(item.screenId);
diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index 340177d..2297ee4 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -618,7 +618,7 @@ public class Workspace extends PagedView
});
}
// Always add a QSB on the first screen.
- if (qsb == null) {
+ /* if (qsb == null) {
// In transposed layout, we add the QSB in the Grid. As workspace does not touch the
// edges, we do not need a full width QSB.
qsb = mLauncher.getLayoutInflater().inflate(
@@ -626,12 +626,12 @@ public class Workspace extends PagedView
? R.layout.qsb_container : R.layout.qsb_blocker_view,
firstPage, false);
}
-
- CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, firstPage.getCountX(), 1);
- lp.canReorder = false;
- if (!firstPage.addViewToCellLayout(qsb, 0, getEmbeddedQsbId(), lp, true)) {
+*/
+ // CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, firstPage.getCountX(), 1);
+ // lp.canReorder = false;
+ /* if (!firstPage.addViewToCellLayout(qsb, 0, getEmbeddedQsbId(), lp, true)) {
Log.e(TAG, "Failed to add to item at (0, 0) to CellLayout");
- }
+ }*/
}

@Override
@@ -779,6 +779,9 @@ public class Workspace extends PagedView
CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID);
int spanX = customScreen.getCountX();
int spanY = customScreen.getCountY();

+ android.util.Log.i("neil","spanX = "+spanX+"spanY = "+spanY);
+
CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, spanX, spanY);
lp.canReorder = false;
lp.isFullscreen = true;

7.1系统隐藏谷歌搜索未测试

Launcher3桌面的行数和列数是动态计算的,如何修改?

* 桌面行、列计算部分转自 LYJ的IT生活 *

Launcher3桌面的行数和列数都是在InvariantDeviceProfile.java和DeviceProfile.java中动态计算的,xml中无法配置。
Note:L版本无InvariantDeviceProfile.java,是DynamicGrid.java,但是计算方法都是一样的。
InvariantDeviceProfile中用InvariantDeviceProfile来配置各种屏幕的手机桌面。

 ArrayList getPredefinedDeviceProfiles() {
        ArrayList predefinedDeviceProfiles = new ArrayList<>();
        // width, height, #rows, #columns, #folder rows, #folder columns,
        // iconSize, iconTextSize, #hotseat, #hotseatIconSize, defaultLayoutId.
        predefinedDeviceProfiles.add(new InvariantDeviceProfile("Super Short Stubby",
                255, 300,     2, 3, 2, 3, 3, 48, 13, 3, 48, R.xml.default_workspace_4x4));
        predefinedDeviceProfiles.add(new InvariantDeviceProfile("Shorter Stubby",
                255, 400,     3, 3, 3, 3, 3, 48, 13, 3, 48, R.xml.default_workspace_4x4));
        predefinedDeviceProfiles.add(new InvariantDeviceProfile("Short Stubby",
                275, 420,     3, 4, 3, 4, 4, 48, 13, 5, 48, R.xml.default_workspace_4x4));
        predefinedDeviceProfiles.add(new InvariantDeviceProfile("Stubby",
                255, 450,     3, 4, 3, 4, 4, 48, 13, 5, 48, R.xml.default_workspace_4x4));
        predefinedDeviceProfiles.add(new InvariantDeviceProfile("Nexus S",
                296, 491.33f, 4, 4, 4, 4, 4, 48, 13, 5, 48, R.xml.default_workspace_4x4));
        predefinedDeviceProfiles.add(new InvariantDeviceProfile("Nexus 4",
                335, 567,     4, 4, 4, 4, 4, DEFAULT_ICON_SIZE_DP, 13, 5, 56, R.xml.default_workspace_4x4));
        predefinedDeviceProfiles.add(new InvariantDeviceProfile("Nexus 5",
                359, 567,     4, 4, 4, 4, 4, DEFAULT_ICON_SIZE_DP, 13, 5, 56, R.xml.default_workspace_4x4));
        predefinedDeviceProfiles.add(new InvariantDeviceProfile("Large Phone",
                406, 694,     5, 5, 4, 4, 4, 64, 14.4f,  5, 56, R.xml.default_workspace_5x5));
        // The tablet profile is odd in that the landscape orientation
        // also includes the nav bar on the side
        predefinedDeviceProfiles.add(new InvariantDeviceProfile("Nexus 7",
                //575, 904,     5, 6, 4, 5, 4, 72, 14.4f,  7, 60, R.xml.default_workspace_5x6));
        // 更改桌面行数为 4 * 5
                575, 904,     4, 5, 4, 5, 4, 72, 14.4f,  7, 60, R.xml.default_workspace_5x6));
        // Larger tablet profiles always have system bars on the top & bottom
        predefinedDeviceProfiles.add(new InvariantDeviceProfile("Nexus 10",
                727, 1207,    5, 6, 4, 5, 4, 76, 14.4f,  7, 64, R.xml.default_workspace_5x6));
        predefinedDeviceProfiles.add(new InvariantDeviceProfile("20-inch Tablet",
                1527, 2527,   7, 7, 6, 6, 4, 100, 20,  7, 72, R.xml.default_workspace_4x4));
        return predefinedDeviceProfiles;
    }

InvariantDeviceProfile的各个参数依次代表:

配置名字(任意定义)、最小宽度(单位是dp)、最小高度(单位是dp)、桌面行数、桌面列数、文件夹行数、
    文件夹列数、主菜单中predicted apps最小列数、桌面Icon的size(单位是dp)、桌面Icon的文字size(单
    位是dp)、Hotseat的Icon个数、Hotseat的Icon的size(单位是dp)、默认的桌面配置LayoutId。

PS:
如何由手机分辨率计算最小宽度、最小高度?
例如:手机分辨率为720*1280,DPI=320。
竖屏时:X*Y=720*1230(1230=屏幕高度-状态栏高度-NavigationBar高度)
横屏时:Y*X=646*1280(646=屏幕宽度-状态栏高度-NavigationBar高度)
最小宽度为:323=Min(720,646)/(320/160)
最小高度为:615=Min(1230,1280)/(320/160)