我有一个问题，请解释一下，我是新来的。
因为
我发现了一次崩溃 try{
if(root.isChecked()==true){
Runtime.getRuntime().exec("su");
}
} catch (IOException e){ }
我已经把这个，也APP崩溃了
try{
if(root.isChecked()){
Runtime.getRuntime().exec("su");
}
} catch (IOException e){ }
我也是这样测试的，没有运气也好：
if(root.isChecked()==true){
try{
Runtime.getRuntime().exec("su");
} catch (IOException e){ }
}
但是当我使用我的测试时：
try{
if("a"=="a"){
Runtime.getRuntime().exec("su");
}
} catch (IOException e){ }
一切都很好。有人可以解释一下。非常感谢你。
Log.d
09-13 14:26:20.939 20109 20109 E Zygote pl.treno.ac MountEmulatedStorage()
09-13 14:26:20.939 20109 20109 E Zygote pl.treno.ac v2
09-13 14:26:20.939 20109 20109 I libpersona pl.treno.ac KNOX_SDCARD checking this for 10069
09-13 14:26:20.939 20109 20109 I libpersona pl.treno.ac KNOX_SDCARD not a persona
09-13 14:26:20.959 20109 20109 I SELinux pl.treno.ac Function: selinux_compare_spd_ram , priority [2] , priority version is VE=SEPF_SM-G900F_5.0_0011
09-13 14:26:20.959 20109 20109 E SELinux pl.treno.ac [DEBUG] get_category: variable seinfo: default sensitivity: NULL, cateogry: NULL
09-13 14:26:20.959 20109 20109 I art pl.treno.ac Late-enabling -Xcheck:jni
09-13 14:26:20.999 20109 20109 D ResourcesManager pl.treno.ac creating new AssetManager and set to /data/app/pl.treno.ac-1/base.apk
09-13 14:26:21.069 20109 20109 D Activity pl.treno.ac performCreate Call secproduct feature valuefalse
09-13 14:26:21.069 20109 20109 D Activity pl.treno.ac performCreate Call debug elastic valuetrue
09-13 14:26:21.079 20109 20129 D OpenGLRenderer pl.treno.ac Render dirty regions requested: true
09-13 14:26:21.109 20109 20129 I Adreno-EGL pl.treno.ac <qeglDrvAPI_eglInitialize:410>: EGL 1.4 QUALCOMM build: ()
09-13 14:26:21.109 20109 20129 I Adreno-EGL pl.treno.ac OpenGL ES Shader Compiler Version: E031.25.01.03
09-13 14:26:21.109 20109 20129 I Adreno-EGL pl.treno.ac Build Date: 03/03/15 Tue
09-13 14:26:21.109 20109 20129 I Adreno-EGL pl.treno.ac Local Branch: LA.BF.1.1_RB1_20150108_025_1077123_1158499
09-13 14:26:21.109 20109 20129 I Adreno-EGL pl.treno.ac Remote Branch:
09-13 14:26:21.109 20109 20129 I Adreno-EGL pl.treno.ac Local Patches:
09-13 14:26:21.109 20109 20129 I Adreno-EGL pl.treno.ac Reconstruct Branch:
09-13 14:26:21.109 20109 20129 I OpenGLRenderer pl.treno.ac Initialized EGL, version 1.4
09-13 14:26:21.129 20109 20129 I OpenGLRenderer pl.treno.ac HWUI protection enabled for context , &this =0xa2022088 ,&mEglDisplay = 1 , &mEglConfig = 8
09-13 14:26:21.139 20109 20129 D OpenGLRenderer pl.treno.ac Enabling debug mode 0
09-13 14:26:21.179 20109 20109 I Timeline pl.treno.ac Timeline: Activity_idle id: android.os.BinderProxy@2a9b6256 time:835825
Log.e
09-13 14:49:41.029 31968 31968 E Zygote pl.treno.ac MountEmulatedStorage()
09-13 14:49:41.029 31968 31968 E Zygote pl.treno.ac v2
09-13 14:49:41.029 31968 31968 I libpersona pl.treno.ac KNOX_SDCARD checking this for 10069
09-13 14:49:41.029 31968 31968 I libpersona pl.treno.ac KNOX_SDCARD not a persona
09-13 14:49:41.049 31968 31968 I SELinux pl.treno.ac Function: selinux_compare_spd_ram , priority [2] , priority version is VE=SEPF_SM-G900F_5.0_0011
09-13 14:49:41.049 31968 31968 E SELinux pl.treno.ac [DEBUG] get_category: variable seinfo: default sensitivity: NULL, cateogry: NULL
09-13 14:49:41.049 31968 31968 I art pl.treno.ac Late-enabling -Xcheck:jni
09-13 14:49:41.109 31968 31968 D ResourcesManager pl.treno.ac creating new AssetManager and set to /data/app/pl.treno.ac-1/base.apk
09-13 14:49:41.169 31968 31968 D Activity pl.treno.ac performCreate Call secproduct feature valuefalse
09-13 14:49:41.169 31968 31968 D Activity pl.treno.ac performCreate Call debug elastic valuetrue
09-13 14:49:41.179 31968 31988 D OpenGLRenderer pl.treno.ac Render dirty regions requested: true
09-13 14:49:41.199 31968 31988 I Adreno-EGL pl.treno.ac <qeglDrvAPI_eglInitialize:410>: EGL 1.4 QUALCOMM build: ()
09-13 14:49:41.199 31968 31988 I Adreno-EGL pl.treno.ac OpenGL ES Shader Compiler Version: E031.25.01.03
09-13 14:49:41.199 31968 31988 I Adreno-EGL pl.treno.ac Build Date: 03/03/15 Tue
09-13 14:49:41.199 31968 31988 I Adreno-EGL pl.treno.ac Local Branch: LA.BF.1.1_RB1_20150108_025_1077123_1158499
09-13 14:49:41.199 31968 31988 I Adreno-EGL pl.treno.ac Remote Branch:
09-13 14:49:41.199 31968 31988 I Adreno-EGL pl.treno.ac Local Patches:
09-13 14:49:41.199 31968 31988 I Adreno-EGL pl.treno.ac Reconstruct Branch:
09-13 14:49:41.209 31968 31988 I OpenGLRenderer pl.treno.ac Initialized EGL, version 1.4
09-13 14:49:41.219 31968 31988 I OpenGLRenderer pl.treno.ac HWUI protection enabled for context , &this =0xa2022088 ,&mEglDisplay = 1 , &mEglConfig = 8
09-13 14:49:41.229 31968 31988 D OpenGLRenderer pl.treno.ac Enabling debug mode 0
09-13 14:49:41.269 31968 31968 I Timeline pl.treno.ac Timeline: Activity_idle id: android.os.BinderProxy@33306471 time:2235915
09-13 14:49:43.399 31968 31968 D ViewRootImpl pl.treno.ac ViewPostImeInputStage ACTION_DOWN
09-13 14:49:43.439 31968 31968 I Timeline pl.treno.ac Timeline: Activity_launch_request id:pl.treno.ac time:2238081
09-13 14:49:43.469 31968 31968 D Activity pl.treno.ac performCreate Call secproduct feature valuefalse
09-13 14:49:43.469 31968 31968 D Activity pl.treno.ac performCreate Call debug elastic valuetrue
09-13 14:49:43.529 31968 31968 I Timeline pl.treno.ac Timeline: Activity_idle id: android.os.BinderProxy@326f3573 time:2238175
09-13 14:49:44.849 31968 31968 D ViewRootImpl pl.treno.ac ViewPostImeInputStage ACTION_DOWN
09-13 14:49:44.919 31968 31968 I Timeline pl.treno.ac Timeline: Activity_launch_request id:pl.treno.ac time:2239562
09-13 14:49:44.969 31968 31968 V BitmapFactory pl.treno.ac DecodeImagePath(decodeResourceStream3) : res/drawable-xhdpi-v4/btn_check_on.png
09-13 14:49:44.969 31968 31968 V BitmapFactory pl.treno.ac DecodeImagePath(decodeResourceStream3) : res/drawable-xhdpi-v4/btn_check_off.png
09-13 14:49:44.969 31968 31968 V BitmapFactory pl.treno.ac DecodeImagePath(decodeResourceStream3) : res/drawable-xhdpi-v4/btn_check_on_pressed.png
09-13 14:49:44.969 31968 31968 V BitmapFactory pl.treno.ac DecodeImagePath(decodeResourceStream3) : res/drawable-xhdpi-v4/btn_check_off_pressed.png
09-13 14:49:44.979 31968 31968 V BitmapFactory pl.treno.ac DecodeImagePath(decodeResourceStream3) : res/drawable-xhdpi-v4/btn_check_on_selected.png
09-13 14:49:44.979 31968 31968 V BitmapFactory pl.treno.ac DecodeImagePath(decodeResourceStream3) : res/drawable-xhdpi-v4/btn_check_off_selected.png
09-13 14:49:44.979 31968 31968 V BitmapFactory pl.treno.ac DecodeImagePath(decodeResourceStream3) : res/drawable-xhdpi-v4/btn_check_on_disable.png
09-13 14:49:44.989 31968 31968 V BitmapFactory pl.treno.ac DecodeImagePath(decodeResourceStream3) : res/drawable-xhdpi-v4/btn_check_off_disable.png
09-13 14:49:44.989 31968 31968 V BitmapFactory pl.treno.ac DecodeImagePath(decodeResourceStream3) : res/drawable-hdpi-v4/btn_check_on_disable_focused.png
09-13 14:49:44.989 31968 31968 V BitmapFactory pl.treno.ac DecodeImagePath(decodeResourceStream3) : res/drawable-xhdpi-v4/btn_check_off_disable_focused.png
09-13 14:49:44.999 31968 31968 D Activity pl.treno.ac performCreate Call secproduct feature valuefalse
09-13 14:49:44.999 31968 31968 D Activity pl.treno.ac performCreate Call debug elastic valuetrue
09-13 14:49:45.079 31968 31968 I Timeline pl.treno.ac Timeline: Activity_idle id: android.os.BinderProxy@1e5ef392 time:2239728
09-13 14:50:04.199 32163 32163 E Zygote pl.treno.ac MountEmulatedStorage()
09-13 14:50:04.209 32163 32163 E Zygote pl.treno.ac v2
09-13 14:50:04.209 32163 32163 I libpersona pl.treno.ac KNOX_SDCARD checking this for 10069
09-13 14:50:04.209 32163 32163 I libpersona pl.treno.ac KNOX_SDCARD not a persona
09-13 14:50:04.209 32163 32163 I SELinux pl.treno.ac Function: selinux_compare_spd_ram , priority [2] , priority version is VE=SEPF_SM-G900F_5.0_0011
09-13 14:50:04.209 32163 32163 E SELinux pl.treno.ac [DEBUG] get_category: variable seinfo: default sensitivity: NULL, cateogry: NULL
09-13 14:50:04.209 32163 32163 I art pl.treno.ac Late-enabling -Xcheck:jni
09-13 14:50:04.269 32163 32163 D ResourcesManager pl.treno.ac creating new AssetManager and set to /data/app/pl.treno.ac-1/base.apk
09-13 14:50:04.329 32163 32163 D Activity pl.treno.ac performCreate Call secproduct feature valuefalse
09-13 14:50:04.329 32163 32163 D Activity pl.treno.ac performCreate Call debug elastic valuetrue
09-13 14:50:04.349 32163 32184 D OpenGLRenderer pl.treno.ac Render dirty regions requested: true
09-13 14:50:04.389 32163 32184 I Adreno-EGL pl.treno.ac <qeglDrvAPI_eglInitialize:410>: EGL 1.4 QUALCOMM build: ()
09-13 14:50:04.389 32163 32184 I Adreno-EGL pl.treno.ac OpenGL ES Shader Compiler Version: E031.25.01.03
09-13 14:50:04.389 32163 32184 I Adreno-EGL pl.treno.ac Build Date: 03/03/15 Tue
09-13 14:50:04.389 32163 32184 I Adreno-EGL pl.treno.ac Local Branch: LA.BF.1.1_RB1_20150108_025_1077123_1158499
09-13 14:50:04.389 32163 32184 I Adreno-EGL pl.treno.ac Remote Branch:
09-13 14:50:04.389 32163 32184 I Adreno-EGL pl.treno.ac Local Patches:
09-13 14:50:04.389 32163 32184 I Adreno-EGL pl.treno.ac Reconstruct Branch:
09-13 14:50:04.389 32163 32184 I OpenGLRenderer pl.treno.ac Initialized EGL, version 1.4
09-13 14:50:04.409 32163 32184 I OpenGLRenderer pl.treno.ac HWUI protection enabled for context , &this =0xaec22088 ,&mEglDisplay = 1 , &mEglConfig = 8
09-13 14:50:04.419 32163 32184 D OpenGLRenderer pl.treno.ac Enabling debug
来自终端的LogCat
---- 13 wrz 2015 15:56:44 ----
09-13 15:56:13.113 6253 6253 I Timeline: Timeline: Activity_launch_request id:pl.treno.ac time:4341240
09-13 15:56:13.113 1052 2151 I ActivityManager: START u0 {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=pl.treno.ac/.MainActivity} from uid 10027 on display 0
09-13 15:56:13.133 1052 3910 I ActivityManager: Start proc pl.treno.ac for activity pl.treno.ac/.MainActivity: pid=19082 uid=10069 gids={50069, 9997} abi=armeabi-v7a
09-13 15:56:13.143 250 250 I SurfaceFlinger: id=1021 createSurf (1080x1920),1 flag=404, Starting pl.treno.ac
09-13 15:56:13.303 250 250 I SurfaceFlinger: id=1022 createSurf (1080x1920),1 flag=404, pl.treno.ac/pl.treno.ac.MainActivity
09-13 15:56:13.393 1052 1096 I ActivityManager: Displayed pl.treno.ac/.MainActivity: +269ms
09-13 15:56:13.393 1052 1096 I Timeline: Timeline: Activity_windows_visible id: ActivityRecord{11fbaf43 u0 pl.treno.ac/.MainActivity t104} time:4341529
09-13 15:56:13.513 250 16968 I SurfaceFlinger: id=1021 Removed Starting pl.treno.ac (5/8)
09-13 15:56:13.513 250 358 I SurfaceFlinger: id=1021 Removed Starting pl.treno.ac (-2/8)
09-13 15:56:14.573 19082 19082 I Timeline: Timeline: Activity_launch_request id:pl.treno.ac time:4342703
09-13 15:56:14.583 1052 1079 I ActivityManager: START u0 {cmp=pl.treno.ac/.cleaner} from uid 10069 on display 0
09-13 15:56:14.633 250 250 I SurfaceFlinger: id=1023 createSurf (1x1),1 flag=404, pl.treno.ac/pl.treno.ac.cleaner
09-13 15:56:14.683 1052 1096 I ActivityManager: Displayed pl.treno.ac/.cleaner: +91ms
09-13 15:56:14.823 250 2432 I SurfaceFlinger: id=1022 Removed pl.treno.ac/pl.treno.ac.MainActivity (3/8)
09-13 15:56:14.823 250 16968 I SurfaceFlinger: id=1022 Removed pl.treno.ac/pl.treno.ac.MainActivity (-2/8)
09-13 15:56:14.883 1052 1096 I Timeline: Timeline: Activity_windows_visible id: ActivityRecord{189f0a6d u0 pl.treno.ac/.cleaner t104} time:4343016
09-13 15:56:17.643 19082 19082 I Timeline: Timeline: Activity_launch_request id:pl.treno.ac time:4345775
09-13 15:56:17.653 1052 3854 I ActivityManager: START u0 {cmp=pl.treno.ac/.cleaner_caches} from uid 10069 on display 0
09-13 15:56:17.733 250 250 I SurfaceFlinger: id=1024 createSurf (1x1),1 flag=404, pl.treno.ac/pl.treno.ac.cleaner_caches
09-13 15:56:17.803 1052 1096 I ActivityManager: Displayed pl.treno.ac/.cleaner_caches: +130ms
09-13 15:56:17.943 250 2242 I SurfaceFlinger: id=1023 Removed pl.treno.ac/pl.treno.ac.cleaner (3/8)
09-13 15:56:17.943 250 358 I SurfaceFlinger: id=1023 Removed pl.treno.ac/pl.treno.ac.cleaner (-2/8)
09-13 15:56:18.003 1052 1096 I Timeline: Timeline: Activity_windows_visible id: ActivityRecord{1ab711ab u0 pl.treno.ac/.cleaner_caches t104} time:4346133
09-13 15:56:19.143 19082 19082 E AndroidRuntime: Process: pl.treno.ac, PID: 19082
09-13 15:56:19.143 19082 19082 E AndroidRuntime: at pl.treno.ac.cleaner_caches$100000002.onClick(cleaner_caches.java:54)
09-13 15:56:19.153 1052 3862 W ActivityManager: Force finishing activity pl.treno.ac/.cleaner_caches
09-13 15:56:19.213 250 250 I SurfaceFlinger: id=1025 createSurf (49x49),1 flag=4, Application Error: pl.treno.ac
09-13 15:56:19.663 1052 1090 W ActivityManager: Activity pause timeout for ActivityRecord{1ab711ab u0 pl.treno.ac/.cleaner_caches t104 f}
09-13 15:56:20.923 1052 2400 I ActivityManager: Process pl.treno.ac (pid 19082)(adj 0) has died(74,291)
09-13 15:56:20.933 1052 2429 I WindowState: WIN DEATH: Window{12531d87 u0 pl.treno.ac/pl.treno.ac.cleaner_caches}
09-13 15:56:20.933 1052 3910 I WindowState: WIN DEATH: Window{2cd580d8 u0 pl.treno.ac/pl.treno.ac.MainActivity}
09-13 15:56:20.943 1052 3913 I WindowState: WIN DEATH: Window{33aee069 u0 pl.treno.ac/pl.treno.ac.cleaner}
09-13 15:56:20.963 250 250 I SurfaceFlinger: id=1026 createSurf (1x1),1 flag=404, Starting pl.treno.ac
09-13 15:56:20.973 1052 2400 I ActivityManager: Start proc pl.treno.ac for activity pl.treno.ac/.cleaner: pid=19181 uid=10069 gids={50069, 9997} abi=armeabi-v7a
09-13 15:56:21.013 250 351 I SurfaceFlinger: id=1025 Removed Application Error: pl.treno.ac (8/9)
09-13 15:56:21.013 250 2242 I SurfaceFlinger: id=1025 Removed Application Error: pl.treno.ac (-2/9)
09-13 15:56:21.043 250 351 I SurfaceFlinger: id=1024 Removed pl.treno.ac/pl.treno.ac.cleaner_caches (3/8)
09-13 15:56:21.043 250 358 I SurfaceFlinger: id=1024 Removed pl.treno.ac/pl.treno.ac.cleaner_caches (-2/8)
09-13 15:56:21.053 250 2432 I SurfaceFlinger: id=1024 Removed pl.treno.ac/pl.treno.ac.cleaner_caches (-2/8)
09-13 15:56:21.153 250 250 I SurfaceFlinger: id=1027 createSurf (1x1),1 flag=404, pl.treno.ac/pl.treno.ac.cleaner
09-13 15:56:21.263 1052 1096 I ActivityManager: Displayed pl.treno.ac/.cleaner: +313ms
09-13 15:56:21.263 1052 1096 I Timeline: Timeline: Activity_windows_visible id: ActivityRecord{189f0a6d u0 pl.treno.ac/.cleaner t104} time:4349395
09-13 15:56:21.393 250 16968 I SurfaceFlinger: id=1026 Removed Starting pl.treno.ac (5/8)
09-13 15:56:21.393 250 351 I SurfaceFlinger: id=1026 Removed Starting pl.treno.ac (-2/8)
09-13 15:56:22.003 250 351 I SurfaceFlinger: id=1027 Removed pl.treno.ac/pl.treno.ac.cleaner (6/8)
09-13 15:56:22.003 250 2242 I SurfaceFlinger: id=1027 Removed pl.treno.ac/pl.treno.ac.cleaner (-2/8)
此外，这个APP在请求root访问权限之前关闭，我知道它正在运行。因为“a”==“a”或没有，如果我收到根访问问题和一切正常工作。 使用终端日志I out，这是第42行的错误，如果
，则完全放置