示範
XML
xml version="1.0" encoding="utf-8"?> <android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".MainActivity"> > <TextView android:id="@+id/t1" android:layout_width="wrap_content" android:layout_height="wrap_content" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" /> android.support.constraint.ConstraintLayout>
JAVA
public class MainActivity extends AppCompatActivity { TextView t1; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); t1=(TextView)findViewById(R.id.t1); try { Runtime.getRuntime().exec("logcat -d"); Process process = Runtime.getRuntime().exec("logcat -d"); BufferedReader bufferedReader = new BufferedReader( new InputStreamReader(process.getInputStream())); StringBuilder log = new StringBuilder(); String line = ""; while ((line = bufferedReader.readLine()) != null) { log.append(line); } t1.setText(log.toString()); } catch (IOException e) { } } }
相關文章: