电脑分辨率1368x768，模拟器的分辨率是480x800 hdpi，Android 5.0.1的API会出现这个问题，Android .4.0没有这个问题。Android 5.0.1 API模拟器的详细配置如下：
Name: Nexus_5_API_21_x86
CPU/ABI: Intel Atom (x86_64)
Path: /home/pchui/.android/avd/Nexus_5_API_21_x86.avd
Target: Android 5.0.1 (API level 21)
Skin: WVGA800
SD Card: /home/pchui/.android/avd/Nexus_5_API_21_x86.avd/sdcard.img
Snapshot: no
hw.dPad: no
runtime.network.speed: full
hw.accelerometer: yes
hw.device.name: 4in WVGA (Nexus S)
vm.heapSize: 64
skin.dynamic: no
hw.device.manufacturer: Generic
hw.gps: yes
hw.audioInput: yes
tag.id: default
hw.camera.back: emulated
hw.mainKeys: yes
AvdId: Nexus_5_API_21_x86
hw.camera.front: emulated
hw.lcd.density: 240
runtime.scalefactor: 0.5
avd.ini.displayname: Nexus 5 API 21 x86
snapshot.present: no
hw.device.hash2: MD5:380daa949ffbfa516f53f3f58637c4b3
hw.ramSize: 512
hw.trackBall: no
hw.battery: yes
hw.sdCard: yes
tag.display: Default
runtime.network.latency: none
hw.keyboard: no
hw.sensors.proximity: yes
disk.dataPartition.size: 200M
hw.sensors.orientation: yes
avd.ini.encoding: UTF-8
hw.gpu.enabled: yes
启动后的效果图如下：
刚开始搞android，求指教
