Merge pull request #3517 from Juude/bugfix/input_press

fix crash when the model of the  history item is deleted

apps/Android/MnnLlmChat/app/src/main/java/com/alibaba/mnnllm/android/MainActivity.kt

@@ -104,7 +104,16 @@ class MainActivity : AppCompatActivity() {
         progressDialog!!.show()
         if (destPath == null) {
             destPath =
-                ModelDownloadManager.getInstance(this).getDownloadedFile(modelId!!)!!.absolutePath
+                ModelDownloadManager.getInstance(this).getDownloadedFile(modelId!!)?.absolutePath
+            if (destPath == null) {
+                Toast.makeText(
+                    this,
+                    getString(R.string.model_not_found, modelId),
+                    Toast.LENGTH_LONG
+                ).show()
+                progressDialog?.dismiss()
+                return
+            }
         }
         val isDiffusion = ModelUtils.isDiffusionModel(modelId!!)
         var configFilePath: String? = null

apps/Android/MnnLlmChat/app/src/main/res/values-zh/strings.xml

@@ -97,4 +97,5 @@
     <string name="regenerate">重新生成</string>
     <string name="copy_audio_info">Copy Audio Info</string>
     <string name="report_crash">Report Crash</string>
+    <string name="model_not_found">Model not foud %1$s</string>
 </resources>

apps/Android/MnnLlmChat/app/src/main/res/values/strings.xml

@@ -97,4 +97,5 @@
     <string name="regenerate">Regenerate</string>
     <string name="copy_audio_info">Copy Audio Info</string>
     <string name="report_crash">Report Crash</string>
+    <string name="model_not_found">Model not foud %1$s</string>
 </resources>