RK Android7.1 双屏显示旋转方向
一.参考 Rockchip_Developer_Guide_Dual_Display_Rotation_Direction_Debugging_CN.pdf
persist.sys.rotation.einit = 0 / 1 / 2 / 3： persist.sys.rotation.efull = false / true： 备注：当主副屏宽高比不同时，persist.sys.rotation.efull 为 false，则副屏会出现黑边， 所以这种情况，建议将 persist.sys.rotation.efull 设置为 true，些许的拉伸不会影响显示效果。
二.frameworks\base\services\core\java\com\android\server\display\LogicalDisplay.java
public DisplayInfo getDisplayInfoLocked() {
if (mInfo == null) {
mInfo = new DisplayInfo();
mInfo.copyFrom(mBaseDisplayInfo);
if (mOverrideDisplayInfo != null) {
mInfo.appWidth = mOverrideDisplayInfo.appWidth;
mInfo.appHeight = mOverrideDisplayInfo.appHeight;
mInfo.smallestNominalAppWidth = mOverrideDisplayInfo.smallestNominalAppWidth;
mInfo.smallestNominalAppHeight = mOverrideDisplayInfo.smallestNominalAppHeight;
mInfo.largestNominalAppWidth = mOverrideDisplayInfo.largestNominalAppWidth;
mInfo.largestNominalAppHeight = mOverrideDisplayInfo.largestNominalAppHeight;
mInfo.logicalWidth = mOverrideDisplayInfo.logicalWidth;
mInfo.logicalHeight = mOverrideDisplayInfo.logicalHeight;
mInfo.overscanLeft = mOverrideDisplayInfo.overscanLeft;
mInfo.overscanTop = mOverrideDisplayInfo.overscanTop;
mInfo.overscanRight = mOverrideDisplayInfo.overscanRight;
mInfo.overscanBottom = mOverrideDisplayInfo.overscanBottom;
mInfo.rotation = mOverrideDisplayInfo.rotation;
mInfo.logicalDensityDpi = mOverrideDisplayInfo.logicalDensityDpi;
mInfo.physicalXDpi = mOverrideDisplayInfo.physicalXDpi;
mInfo.physicalYDpi = mOverrideDisplayInfo.physicalYDpi;
}
if(mDisplayId!=Display.DEFAULT_DISPLAY){
String rotation = SystemProperties.get("persist.sys.rotation.einit","0");
if(Integer.valueOf(rotation)%2!=0) {
mInfo.appWidth = mPrimaryDisplayDeviceInfo.height;
mInfo.appHeight = mPrimaryDisplayDeviceInfo.width;
mInfo.logicalWidth = mPrimaryDisplayDeviceInfo.height;
mInfo.logicalHeight=mPrimaryDisplayDeviceInfo.width;
}else{
mInfo.appWidth = mPrimaryDisplayDeviceInfo.width;
mInfo.appHeight = mPrimaryDisplayDeviceInfo.height;
mInfo.logicalWidth = mPrimaryDisplayDeviceInfo.width;
mInfo.logicalHeight=mPrimaryDisplayDeviceInfo.height;
}
}
}
双屏属性
# Dual - display configuration # 主屏 eDP sys.hwc.device.primary=eDP # 副屏 sys.hwc.device.extend=LVDS #persist.sys.framebuffer.main=800x1280 persist.sys.resolution.main=1920x1080 persist.sys.resolution.aux=800x1280 # 副屏是否全屏显示 persist.sys.rotation.efull = true # 主屏的旋转方向(0 90 180 270) ro.sf.hwrotation=0 # 副屏输出旋转方向对应 0 / 90 / 180 / 270(0 1 2 3) +persist.sys.rotation.einit =1 #副屏也随着 g-sensor 旋转（只关注方向，黑边不关注） ro.sys.rotation.sensor =false // 主副屏orientaion是否相同 ro.same.orientation=false // 副屏是否随主屏旋转 ro.rotation.external=false
三.写了个apk 控制属性
3.1.布局
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:gravity="center"
tools:context="com.gatsby.systemdisplay.MainActivity" >
<Button
android:id="@+id/btn1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="0"
android:textSize="32sp" />
<Button
android:id="@+id/btn2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="90"
android:textSize="32sp" />
<Button
android:id="@+id/btn3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="180"
android:textSize="32sp" />
<Button
android:id="@+id/btn4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="270"
android:textSize="32sp" />
<TextView
android:id="@+id/text1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world"
android:textSize="200sp" />
</LinearLayout>
3.2.code
package com.gatsby.systemdisplay;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.lang.reflect.Method;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class MainActivity extends Activity implements OnClickListener {
Button btn1, btn2, btn3, btn4;
TextView text1;
String rotation_einit;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btn1 = (Button) findViewById(R.id.btn1);
btn2 = (Button) findViewById(R.id.btn2);
btn3 = (Button) findViewById(R.id.btn3);
btn4 = (Button) findViewById(R.id.btn4);
text1 = (TextView) findViewById(R.id.text1);
btn1.setOnClickListener(this);
btn2.setOnClickListener(this);
btn3.setOnClickListener(this);
btn4.setOnClickListener(this);
rotation_einit = getProperty("persist.sys.rotation.einit");
text1.setText(rotation_einit);
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch (v.getId()) {
case R.id.btn1:
setProperty("persist.sys.rotation.einit", "0");
RootCommand("reboot");
break;
case R.id.btn2:
setProperty("persist.sys.rotation.einit", "1");
RootCommand("reboot");
break;
case R.id.btn3:
setProperty("persist.sys.rotation.einit", "2");
RootCommand("reboot");
break;
case R.id.btn4:
setProperty("persist.sys.rotation.einit", "3");
RootCommand("reboot");
break;
}
}
@SuppressWarnings("finally")
public String getProperty(String key) {
String value = "unknown";
try {
Class<?> c = Class.forName("android.os.SystemProperties");
Method get = c.getMethod("get", String.class, String.class);
value = (String) (get.invoke(c, key, "unknown"));
} catch (Exception e) {
e.printStackTrace();
} finally {
return value;
}
}
public void setProperty(String key, String value) {
try {
Class<?> c = Class.forName("android.os.SystemProperties");
Method set = c.getMethod("set", String.class, String.class);
set.invoke(c, key, value);
} catch (Exception e) {
e.printStackTrace();
}
}
public void RootCommand(String cmd) {
Process process = null;
DataOutputStream os = null;
DataInputStream is = null;
try {
process = Runtime.getRuntime().exec("su");
os = new DataOutputStream(process.getOutputStream());
os.writeBytes(cmd + "\n");
os.writeBytes("exit\n");
os.flush();
int aa = process.waitFor();
is = new DataInputStream(process.getInputStream());
byte[] buffer = new byte[is.available()];
is.read(buffer);
String out = new String(buffer);
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (os != null) {
os.close();
}
if (is != null) {
is.close();
}
process.destroy();
} catch (Exception e) {
}
}
}
}
