Android 默认把触摸屏show touches打开

weiqifa@weiqifa-Inspiron-3847:~/weiqifa/new_tm100/tm100$ git diff packages/apps/Settings/src/com/android/settings/DevelopmentSettings.java

diff --git a/packages/apps/Settings/src/com/android/settings/DevelopmentSettings.java b/packages/apps/Settings/src/com/android/settings/DevelopmentSettings.java

index 2ac79ce..b87d98b 100644

--- a/packages/apps/Settings/src/com/android/settings/DevelopmentSettings.java

b/packages/apps/Settings/src/com/android/settings/DevelopmentSettings.java

@@ -321,6 321,9 @@ public class DevelopmentSettings extends RestrictedSettingsFragment

mAllPrefs.add(hdcpChecking);

removePreferenceForProduction(hdcpChecking);

}

Settings.System.putInt(getActivity().getContentResolver(),

Settings.System.SHOW_TOUCHES, 1);

}

private ListPreference addListPreference(String prefKey) {

Settings.System.putInt设置此函数，最后一个参数为0，即不选择，否则选择复选框，

我添加了这个代码onCreate在函数中，启动时会调用。